id	sid	tid	token	lemma	pos
ajst-3255	1	1	academic	academic	ADJ
ajst-3255	1	2	journal	journal	NOUN
ajst-3255	1	3	of	of	ADP
ajst-3255	1	4	science	science	NOUN
ajst-3255	1	5	and	and	CCONJ
ajst-3255	1	6	technology	technology	NOUN
ajst-3255	1	7	issn	issn	NOUN
ajst-3255	1	8	:	:	PUNCT
ajst-3255	1	9	2771	2771	NUM
ajst-3255	1	10	-	-	SYM
ajst-3255	1	11	3032	3032	NUM
ajst-3255	1	12	|	|	NOUN
ajst-3255	1	13	vol	vol	NOUN
ajst-3255	1	14	.	.	PROPN
ajst-3255	2	1	4	4	NUM
ajst-3255	2	2	,	,	PUNCT
ajst-3255	2	3	no	no	INTJ
ajst-3255	2	4	.	.	NOUN
ajst-3255	2	5	1	1	NUM
ajst-3255	2	6	,	,	PUNCT
ajst-3255	2	7	2022	2022	NUM
ajst-3255	2	8	67	67	NUM
ajst-3255	2	9	a	a	DET
ajst-3255	2	10	survey	survey	NOUN
ajst-3255	2	11	of	of	ADP
ajst-3255	2	12	several	several	ADJ
ajst-3255	2	13	common	common	ADJ
ajst-3255	2	14	navigation	navigation	NOUN
ajst-3255	2	15	methods	method	NOUN
ajst-3255	2	16	for	for	ADP
ajst-3255	2	17	spacecrafts	spacecraft	NOUN
ajst-3255	2	18	shuxuan	shuxuan	ADJ
ajst-3255	2	19	wang1	wang1	NOUN
ajst-3255	2	20	,	,	PUNCT
ajst-3255	2	21	*	*	PUNCT
ajst-3255	2	22	1the	1the	NUM
ajst-3255	2	23	civil	civil	ADJ
ajst-3255	2	24	aviation	aviation	NOUN
ajst-3255	2	25	college	college	NOUN
ajst-3255	2	26	,	,	PUNCT
ajst-3255	2	27	northwestern	northwestern	PROPN
ajst-3255	2	28	polytechnical	polytechnical	PROPN
ajst-3255	2	29	university	university	PROPN
ajst-3255	2	30	,	,	PUNCT
ajst-3255	2	31	xi’an	xi’an	PROPN
ajst-3255	2	32	,	,	PUNCT
ajst-3255	2	33	shaanxi	shaanxi	PROPN
ajst-3255	2	34	province	province	PROPN
ajst-3255	2	35	,	,	PUNCT
ajst-3255	2	36	710072	710072	NUM
ajst-3255	2	37	,	,	PUNCT
ajst-3255	2	38	china	china	PROPN
ajst-3255	2	39	*	*	PUNCT
ajst-3255	2	40	corresponding	correspond	VERB
ajst-3255	2	41	author	author	NOUN
ajst-3255	2	42	’s	’s	PART
ajst-3255	2	43	e	e	NOUN
ajst-3255	2	44	-	-	NOUN
ajst-3255	2	45	mail	mail	NOUN
ajst-3255	2	46	:	:	PUNCT
ajst-3255	2	47	szdraaacy@mail.nwpu.edu.cn	szdraaacy@mail.nwpu.edu.cn	PROPN
ajst-3255	2	48	abstract	abstract	NOUN
ajst-3255	2	49	:	:	PUNCT
ajst-3255	2	50	spacecraft	spacecraft	NOUN
ajst-3255	2	51	work	work	NOUN
ajst-3255	2	52	beyond	beyond	ADP
ajst-3255	2	53	the	the	DET
ajst-3255	2	54	earth	earth	NOUN
ajst-3255	2	55	’s	’s	PART
ajst-3255	2	56	atmosphere	atmosphere	NOUN
ajst-3255	2	57	.	.	PUNCT
ajst-3255	3	1	with	with	ADP
ajst-3255	3	2	the	the	DET
ajst-3255	3	3	development	development	NOUN
ajst-3255	3	4	of	of	ADP
ajst-3255	3	5	aerospace	aerospace	NOUN
ajst-3255	3	6	industry	industry	NOUN
ajst-3255	3	7	,	,	PUNCT
ajst-3255	3	8	missions	mission	NOUN
ajst-3255	3	9	of	of	ADP
ajst-3255	3	10	spacecrafts	spacecraft	NOUN
ajst-3255	3	11	are	be	AUX
ajst-3255	3	12	becoming	become	VERB
ajst-3255	3	13	more	more	ADV
ajst-3255	3	14	and	and	CCONJ
ajst-3255	3	15	more	more	ADV
ajst-3255	3	16	complex	complex	ADJ
ajst-3255	3	17	.	.	PUNCT
ajst-3255	4	1	so	so	ADV
ajst-3255	4	2	spacecrafts	spacecraft	NOUN
ajst-3255	4	3	need	need	VERB
ajst-3255	4	4	more	more	ADV
ajst-3255	4	5	efficient	efficient	ADJ
ajst-3255	4	6	and	and	CCONJ
ajst-3255	4	7	accurate	accurate	ADJ
ajst-3255	4	8	navigation	navigation	NOUN
ajst-3255	4	9	system	system	NOUN
ajst-3255	4	10	to	to	PART
ajst-3255	4	11	help	help	VERB
ajst-3255	4	12	their	their	PRON
ajst-3255	4	13	works	work	NOUN
ajst-3255	4	14	.	.	PUNCT
ajst-3255	5	1	every	every	DET
ajst-3255	5	2	navigation	navigation	NOUN
ajst-3255	5	3	system	system	NOUN
ajst-3255	5	4	has	have	VERB
ajst-3255	5	5	its	its	PRON
ajst-3255	5	6	advantages	advantage	NOUN
ajst-3255	5	7	and	and	CCONJ
ajst-3255	5	8	disadvantages	disadvantage	NOUN
ajst-3255	5	9	.	.	PUNCT
ajst-3255	6	1	this	this	DET
ajst-3255	6	2	paper	paper	NOUN
ajst-3255	6	3	summarizes	summarize	VERB
ajst-3255	6	4	several	several	ADJ
ajst-3255	6	5	common	common	ADJ
ajst-3255	6	6	navigation	navigation	NOUN
ajst-3255	6	7	methods	method	NOUN
ajst-3255	6	8	and	and	CCONJ
ajst-3255	6	9	their	their	PRON
ajst-3255	6	10	characteristics	characteristic	NOUN
ajst-3255	6	11	,	,	PUNCT
ajst-3255	6	12	and	and	CCONJ
ajst-3255	6	13	the	the	DET
ajst-3255	6	14	application	application	NOUN
ajst-3255	6	15	of	of	ADP
ajst-3255	6	16	different	different	ADJ
ajst-3255	6	17	navigation	navigation	NOUN
ajst-3255	6	18	methods	method	NOUN
ajst-3255	6	19	,	,	PUNCT
ajst-3255	6	20	as	as	ADV
ajst-3255	6	21	well	well	ADV
ajst-3255	6	22	as	as	ADP
ajst-3255	6	23	their	their	PRON
ajst-3255	6	24	trend	trend	NOUN
ajst-3255	6	25	of	of	ADP
ajst-3255	6	26	future	future	ADJ
ajst-3255	6	27	development	development	NOUN
ajst-3255	6	28	.	.	PUNCT
ajst-3255	7	1	keywords	keyword	NOUN
ajst-3255	7	2	:	:	PUNCT
ajst-3255	7	3	aerospace	aerospace	NOUN
ajst-3255	7	4	navigation	navigation	NOUN
ajst-3255	7	5	,	,	PUNCT
ajst-3255	7	6	inertial	inertial	ADJ
ajst-3255	7	7	system	system	NOUN
ajst-3255	7	8	,	,	PUNCT
ajst-3255	7	9	celestial	celestial	ADJ
ajst-3255	7	10	navigation	navigation	NOUN
ajst-3255	7	11	.	.	PUNCT
ajst-3255	8	1	1	1	X
ajst-3255	8	2	.	.	X
ajst-3255	8	3	introduction	introduction	NOUN
ajst-3255	8	4	navigation	navigation	NOUN
ajst-3255	8	5	for	for	ADP
ajst-3255	8	6	the	the	DET
ajst-3255	8	7	spacecraft	spacecraft	NOUN
ajst-3255	8	8	is	be	AUX
ajst-3255	8	9	an	an	DET
ajst-3255	8	10	important	important	ADJ
ajst-3255	8	11	step	step	NOUN
ajst-3255	8	12	for	for	ADP
ajst-3255	8	13	a	a	DET
ajst-3255	8	14	successful	successful	ADJ
ajst-3255	8	15	flight	flight	NOUN
ajst-3255	8	16	.	.	PUNCT
ajst-3255	9	1	it	it	PRON
ajst-3255	9	2	is	be	AUX
ajst-3255	9	3	almost	almost	ADV
ajst-3255	9	4	impossible	impossible	ADJ
ajst-3255	9	5	for	for	SCONJ
ajst-3255	9	6	spacecrafts	spacecraft	NOUN
ajst-3255	9	7	to	to	PART
ajst-3255	9	8	complete	complete	VERB
ajst-3255	9	9	their	their	PRON
ajst-3255	9	10	missions	mission	NOUN
ajst-3255	9	11	when	when	SCONJ
ajst-3255	9	12	their	their	PRON
ajst-3255	9	13	position	position	NOUN
ajst-3255	9	14	,	,	PUNCT
ajst-3255	9	15	velocity	velocity	NOUN
ajst-3255	9	16	,	,	PUNCT
ajst-3255	9	17	attitude	attitude	NOUN
ajst-3255	9	18	are	be	AUX
ajst-3255	9	19	not	not	PART
ajst-3255	9	20	clear	clear	ADJ
ajst-3255	9	21	.	.	PUNCT
ajst-3255	10	1	there	there	PRON
ajst-3255	10	2	are	be	VERB
ajst-3255	10	3	two	two	NUM
ajst-3255	10	4	main	main	ADJ
ajst-3255	10	5	functions	function	NOUN
ajst-3255	10	6	of	of	ADP
ajst-3255	10	7	aerospace	aerospace	NOUN
ajst-3255	10	8	navigation	navigation	NOUN
ajst-3255	10	9	.	.	PUNCT
ajst-3255	11	1	the	the	DET
ajst-3255	11	2	first	first	ADJ
ajst-3255	11	3	is	be	AUX
ajst-3255	11	4	to	to	PART
ajst-3255	11	5	determine	determine	VERB
ajst-3255	11	6	the	the	DET
ajst-3255	11	7	information	information	NOUN
ajst-3255	11	8	of	of	ADP
ajst-3255	11	9	the	the	DET
ajst-3255	11	10	spacecraft	spacecraft	NOUN
ajst-3255	11	11	like	like	ADP
ajst-3255	11	12	its	its	PRON
ajst-3255	11	13	position	position	NOUN
ajst-3255	11	14	,	,	PUNCT
ajst-3255	11	15	velocity	velocity	NOUN
ajst-3255	11	16	vector	vector	NOUN
ajst-3255	11	17	,	,	PUNCT
ajst-3255	11	18	attitude	attitude	NOUN
ajst-3255	11	19	etc	etc	X
ajst-3255	11	20	.	.	PUNCT
ajst-3255	12	1	the	the	DET
ajst-3255	12	2	second	second	NOUN
ajst-3255	12	3	is	be	AUX
ajst-3255	12	4	to	to	PART
ajst-3255	12	5	make	make	VERB
ajst-3255	12	6	plans	plan	NOUN
ajst-3255	12	7	for	for	ADP
ajst-3255	12	8	the	the	DET
ajst-3255	12	9	flight[1	flight[1	PROPN
ajst-3255	12	10	]	]	PUNCT
ajst-3255	12	11	.	.	PUNCT
ajst-3255	13	1	with	with	ADP
ajst-3255	13	2	the	the	DET
ajst-3255	13	3	increasing	increase	VERB
ajst-3255	13	4	speed	speed	NOUN
ajst-3255	13	5	of	of	ADP
ajst-3255	13	6	spacecrafts	spacecraft	NOUN
ajst-3255	13	7	,	,	PUNCT
ajst-3255	13	8	the	the	DET
ajst-3255	13	9	more	more	ADV
ajst-3255	13	10	complex	complex	ADJ
ajst-3255	13	11	missions	mission	NOUN
ajst-3255	13	12	,	,	PUNCT
ajst-3255	13	13	the	the	DET
ajst-3255	13	14	increasing	increase	VERB
ajst-3255	13	15	distance	distance	NOUN
ajst-3255	13	16	from	from	ADP
ajst-3255	13	17	the	the	DET
ajst-3255	13	18	earth	earth	NOUN
ajst-3255	13	19	and	and	CCONJ
ajst-3255	13	20	complexity	complexity	NOUN
ajst-3255	13	21	of	of	ADP
ajst-3255	13	22	spacecrafts	spacecraft	NOUN
ajst-3255	13	23	themselves	themselves	PRON
ajst-3255	13	24	,	,	PUNCT
ajst-3255	13	25	the	the	DET
ajst-3255	13	26	navigation	navigation	NOUN
ajst-3255	13	27	systems	system	NOUN
ajst-3255	13	28	become	become	VERB
ajst-3255	13	29	more	more	ADV
ajst-3255	13	30	demanding	demanding	ADJ
ajst-3255	13	31	,	,	PUNCT
ajst-3255	13	32	especially	especially	ADV
ajst-3255	13	33	for	for	ADP
ajst-3255	13	34	the	the	DET
ajst-3255	13	35	deep	deep	ADJ
ajst-3255	13	36	space	space	NOUN
ajst-3255	13	37	spacecrafts	spacecraft	NOUN
ajst-3255	13	38	.	.	PUNCT
ajst-3255	14	1	nowadays	nowadays	ADV
ajst-3255	14	2	we	we	PRON
ajst-3255	14	3	still	still	ADV
ajst-3255	14	4	face	face	VERB
ajst-3255	14	5	several	several	ADJ
ajst-3255	14	6	problems	problem	NOUN
ajst-3255	14	7	.	.	PUNCT
ajst-3255	15	1	the	the	DET
ajst-3255	15	2	first	first	ADJ
ajst-3255	15	3	is	be	AUX
ajst-3255	15	4	the	the	DET
ajst-3255	15	5	matching	matching	NOUN
ajst-3255	15	6	of	of	ADP
ajst-3255	15	7	the	the	DET
ajst-3255	15	8	advantage	advantage	NOUN
ajst-3255	15	9	of	of	ADP
ajst-3255	15	10	the	the	DET
ajst-3255	15	11	navigation	navigation	NOUN
ajst-3255	15	12	modes	mode	NOUN
ajst-3255	15	13	with	with	ADP
ajst-3255	15	14	the	the	DET
ajst-3255	15	15	requirements	requirement	NOUN
ajst-3255	15	16	of	of	ADP
ajst-3255	15	17	spacecrafts	spacecraft	NOUN
ajst-3255	15	18	’	'	PUNCT
ajst-3255	15	19	missions	mission	NOUN
ajst-3255	15	20	.	.	PUNCT
ajst-3255	16	1	the	the	DET
ajst-3255	16	2	second	second	NOUN
ajst-3255	16	3	is	be	AUX
ajst-3255	16	4	more	more	ADV
ajst-3255	16	5	combined	combine	VERB
ajst-3255	16	6	ways	way	NOUN
ajst-3255	16	7	of	of	ADP
ajst-3255	16	8	integrated	integrate	VERB
ajst-3255	16	9	navigation	navigation	NOUN
ajst-3255	16	10	and	and	CCONJ
ajst-3255	16	11	how	how	SCONJ
ajst-3255	16	12	to	to	PART
ajst-3255	16	13	make	make	VERB
ajst-3255	16	14	integrated	integrated	ADJ
ajst-3255	16	15	navigation	navigation	NOUN
ajst-3255	16	16	achieve	achieve	VERB
ajst-3255	16	17	the	the	DET
ajst-3255	16	18	best	good	ADJ
ajst-3255	16	19	results	result	NOUN
ajst-3255	16	20	.	.	PUNCT
ajst-3255	17	1	third	third	ADV
ajst-3255	17	2	,	,	PUNCT
ajst-3255	17	3	the	the	DET
ajst-3255	17	4	further	further	ADJ
ajst-3255	17	5	development	development	NOUN
ajst-3255	17	6	of	of	ADP
ajst-3255	17	7	new	new	ADJ
ajst-3255	17	8	navigation	navigation	NOUN
ajst-3255	17	9	methods	method	NOUN
ajst-3255	17	10	and	and	CCONJ
ajst-3255	17	11	navigation	navigation	NOUN
ajst-3255	17	12	methods	method	NOUN
ajst-3255	17	13	for	for	ADP
ajst-3255	17	14	particular	particular	ADJ
ajst-3255	17	15	conditions	condition	NOUN
ajst-3255	17	16	.	.	PUNCT
ajst-3255	18	1	the	the	DET
ajst-3255	18	2	fourth	fourth	ADJ
ajst-3255	18	3	is	be	AUX
ajst-3255	18	4	the	the	DET
ajst-3255	18	5	update	update	NOUN
ajst-3255	18	6	and	and	CCONJ
ajst-3255	18	7	optimization	optimization	NOUN
ajst-3255	18	8	of	of	ADP
ajst-3255	18	9	navigation	navigation	NOUN
ajst-3255	18	10	systems	system	NOUN
ajst-3255	18	11	’	'	PUNCT
ajst-3255	18	12	algorithm	algorithm	NOUN
ajst-3255	18	13	.	.	PUNCT
ajst-3255	19	1	fifth	fifth	ADJ
ajst-3255	19	2	,	,	PUNCT
ajst-3255	19	3	the	the	DET
ajst-3255	19	4	continuous	continuous	ADJ
ajst-3255	19	5	optimizing	optimizing	NOUN
ajst-3255	19	6	of	of	ADP
ajst-3255	19	7	the	the	DET
ajst-3255	19	8	hardware	hardware	NOUN
ajst-3255	19	9	equipment	equipment	NOUN
ajst-3255	19	10	.	.	PUNCT
ajst-3255	20	1	this	this	DET
ajst-3255	20	2	paper	paper	NOUN
ajst-3255	20	3	summarizes	summarize	VERB
ajst-3255	20	4	some	some	DET
ajst-3255	20	5	common	common	ADJ
ajst-3255	20	6	domestic	domestic	ADJ
ajst-3255	20	7	and	and	CCONJ
ajst-3255	20	8	foreign	foreign	ADJ
ajst-3255	20	9	space	space	NOUN
ajst-3255	20	10	navigation	navigation	NOUN
ajst-3255	20	11	technologies	technology	NOUN
ajst-3255	20	12	and	and	CCONJ
ajst-3255	20	13	looks	look	VERB
ajst-3255	20	14	forward	forward	ADV
ajst-3255	20	15	to	to	ADP
ajst-3255	20	16	the	the	DET
ajst-3255	20	17	future	future	ADJ
ajst-3255	20	18	development	development	NOUN
ajst-3255	20	19	.	.	PUNCT
ajst-3255	21	1	2	2	X
ajst-3255	21	2	.	.	X
ajst-3255	21	3	several	several	ADJ
ajst-3255	21	4	navigation	navigation	NOUN
ajst-3255	21	5	methods	method	NOUN
ajst-3255	21	6	and	and	CCONJ
ajst-3255	21	7	their	their	PRON
ajst-3255	21	8	development	development	NOUN
ajst-3255	21	9	tendency	tendency	NOUN
ajst-3255	21	10	2.1	2.1	NUM
ajst-3255	21	11	.	.	PUNCT
ajst-3255	21	12	inertial	inertial	ADJ
ajst-3255	21	13	navigation	navigation	NOUN
ajst-3255	21	14	2.1.1	2.1.1	NUM
ajst-3255	21	15	.	.	PUNCT
ajst-3255	22	1	a	a	DET
ajst-3255	22	2	brief	brief	ADJ
ajst-3255	22	3	introduction	introduction	NOUN
ajst-3255	22	4	to	to	ADP
ajst-3255	22	5	the	the	DET
ajst-3255	22	6	principles	principle	NOUN
ajst-3255	22	7	of	of	ADP
ajst-3255	22	8	inertial	inertial	ADJ
ajst-3255	22	9	navigation	navigation	NOUN
ajst-3255	22	10	inertial	inertial	NOUN
ajst-3255	22	11	navigation	navigation	NOUN
ajst-3255	22	12	is	be	AUX
ajst-3255	22	13	a	a	DET
ajst-3255	22	14	relatively	relatively	ADV
ajst-3255	22	15	mature	mature	ADJ
ajst-3255	22	16	navigation	navigation	NOUN
ajst-3255	22	17	method	method	NOUN
ajst-3255	22	18	,	,	PUNCT
ajst-3255	22	19	which	which	PRON
ajst-3255	22	20	is	be	AUX
ajst-3255	22	21	widely	widely	ADV
ajst-3255	22	22	used	use	VERB
ajst-3255	22	23	.	.	PUNCT
ajst-3255	23	1	it	it	PRON
ajst-3255	23	2	uses	use	VERB
ajst-3255	23	3	the	the	DET
ajst-3255	23	4	gyroscope	gyroscope	NOUN
ajst-3255	23	5	and	and	CCONJ
ajst-3255	23	6	the	the	DET
ajst-3255	23	7	acceleration	acceleration	NOUN
ajst-3255	23	8	senor	senor	NOUN
ajst-3255	23	9	to	to	PART
ajst-3255	23	10	obtain	obtain	VERB
ajst-3255	23	11	the	the	DET
ajst-3255	23	12	three	three	NUM
ajst-3255	23	13	axis	axis	ADJ
ajst-3255	23	14	angular	angular	ADJ
ajst-3255	23	15	acceleration	acceleration	NOUN
ajst-3255	23	16	and	and	CCONJ
ajst-3255	23	17	linear	linear	ADJ
ajst-3255	23	18	acceleration	acceleration	NOUN
ajst-3255	23	19	of	of	ADP
ajst-3255	23	20	the	the	DET
ajst-3255	23	21	system	system	NOUN
ajst-3255	23	22	to	to	PART
ajst-3255	23	23	calculate	calculate	VERB
ajst-3255	23	24	the	the	DET
ajst-3255	23	25	position	position	NOUN
ajst-3255	23	26	,	,	PUNCT
ajst-3255	23	27	velocity	velocity	NOUN
ajst-3255	23	28	,	,	PUNCT
ajst-3255	23	29	attitude	attitude	NOUN
ajst-3255	23	30	of	of	ADP
ajst-3255	23	31	the	the	DET
ajst-3255	23	32	spacecraft	spacecraft	NOUN
ajst-3255	23	33	.	.	PUNCT
ajst-3255	24	1	according	accord	VERB
ajst-3255	24	2	to	to	ADP
ajst-3255	24	3	whether	whether	SCONJ
ajst-3255	24	4	the	the	DET
ajst-3255	24	5	system	system	NOUN
ajst-3255	24	6	needs	need	VERB
ajst-3255	24	7	the	the	DET
ajst-3255	24	8	external	external	ADJ
ajst-3255	24	9	devices	device	NOUN
ajst-3255	24	10	and	and	CCONJ
ajst-3255	24	11	human	human	PROPN
ajst-3255	24	12	’s	’s	PART
ajst-3255	24	13	information	information	NOUN
ajst-3255	24	14	sources	source	NOUN
ajst-3255	24	15	,	,	PUNCT
ajst-3255	24	16	the	the	DET
ajst-3255	24	17	navigation	navigation	NOUN
ajst-3255	24	18	system	system	NOUN
ajst-3255	24	19	can	can	AUX
ajst-3255	24	20	be	be	AUX
ajst-3255	24	21	divided	divide	VERB
ajst-3255	24	22	into	into	ADP
ajst-3255	24	23	two	two	NUM
ajst-3255	24	24	types	type	NOUN
ajst-3255	24	25	,	,	PUNCT
ajst-3255	24	26	the	the	DET
ajst-3255	24	27	autonomous	autonomous	ADJ
ajst-3255	24	28	navigation	navigation	NOUN
ajst-3255	24	29	or	or	CCONJ
ajst-3255	24	30	not	not	PART
ajst-3255	24	31	.	.	PUNCT
ajst-3255	25	1	the	the	DET
ajst-3255	25	2	inertial	inertial	ADJ
ajst-3255	25	3	navigation	navigation	NOUN
ajst-3255	25	4	is	be	AUX
ajst-3255	25	5	an	an	DET
ajst-3255	25	6	autonomous	autonomous	ADJ
ajst-3255	25	7	navigation	navigation	NOUN
ajst-3255	25	8	system	system	NOUN
ajst-3255	25	9	.	.	PUNCT
ajst-3255	26	1	the	the	DET
ajst-3255	26	2	advantages	advantage	NOUN
ajst-3255	26	3	of	of	ADP
ajst-3255	26	4	inertial	inertial	ADJ
ajst-3255	26	5	system	system	NOUN
ajst-3255	26	6	are	be	AUX
ajst-3255	26	7	its	its	PRON
ajst-3255	26	8	high	high	ADJ
ajst-3255	26	9	data	data	NOUN
ajst-3255	26	10	update	update	NOUN
ajst-3255	26	11	rate	rate	NOUN
ajst-3255	26	12	,	,	PUNCT
ajst-3255	26	13	high	high	ADJ
ajst-3255	26	14	short	short	ADJ
ajst-3255	26	15	-	-	PUNCT
ajst-3255	26	16	term	term	NOUN
ajst-3255	26	17	accuracy	accuracy	NOUN
ajst-3255	26	18	.	.	PUNCT
ajst-3255	27	1	also	also	ADV
ajst-3255	27	2	it	it	PRON
ajst-3255	27	3	wo	will	AUX
ajst-3255	27	4	n’t	not	PART
ajst-3255	27	5	be	be	AUX
ajst-3255	27	6	influenced	influence	VERB
ajst-3255	27	7	by	by	ADP
ajst-3255	27	8	the	the	DET
ajst-3255	27	9	electromagnetic	electromagnetic	ADJ
ajst-3255	27	10	interference	interference	NOUN
ajst-3255	27	11	.	.	PUNCT
ajst-3255	28	1	the	the	DET
ajst-3255	28	2	disadvantage	disadvantage	NOUN
ajst-3255	28	3	is	be	AUX
ajst-3255	28	4	that	that	SCONJ
ajst-3255	28	5	,	,	PUNCT
ajst-3255	28	6	because	because	SCONJ
ajst-3255	28	7	the	the	DET
ajst-3255	28	8	information	information	NOUN
ajst-3255	28	9	is	be	AUX
ajst-3255	28	10	obtained	obtain	VERB
ajst-3255	28	11	by	by	ADP
ajst-3255	28	12	integration	integration	NOUN
ajst-3255	28	13	,	,	PUNCT
ajst-3255	28	14	the	the	DET
ajst-3255	28	15	error	error	NOUN
ajst-3255	28	16	will	will	AUX
ajst-3255	28	17	also	also	ADV
ajst-3255	28	18	accumulate	accumulate	VERB
ajst-3255	28	19	,	,	PUNCT
ajst-3255	28	20	which	which	PRON
ajst-3255	28	21	makes	make	VERB
ajst-3255	28	22	its	its	PRON
ajst-3255	28	23	long	long	ADJ
ajst-3255	28	24	-	-	PUNCT
ajst-3255	28	25	term	term	NOUN
ajst-3255	28	26	accuracy	accuracy	NOUN
ajst-3255	28	27	low[2	low[2	PROPN
ajst-3255	28	28	]	]	PUNCT
ajst-3255	28	29	.	.	PUNCT
ajst-3255	29	1	the	the	DET
ajst-3255	29	2	accuracy	accuracy	NOUN
ajst-3255	29	3	of	of	ADP
ajst-3255	29	4	the	the	DET
ajst-3255	29	5	inertial	inertial	ADJ
ajst-3255	29	6	navigation	navigation	NOUN
ajst-3255	29	7	is	be	AUX
ajst-3255	29	8	closely	closely	ADV
ajst-3255	29	9	related	relate	VERB
ajst-3255	29	10	to	to	ADP
ajst-3255	29	11	its	its	PRON
ajst-3255	29	12	gyroscope	gyroscope	NOUN
ajst-3255	29	13	.	.	PUNCT
ajst-3255	30	1	this	this	DET
ajst-3255	30	2	paper	paper	NOUN
ajst-3255	30	3	mainly	mainly	ADV
ajst-3255	30	4	introduces	introduce	VERB
ajst-3255	30	5	the	the	DET
ajst-3255	30	6	optical	optical	ADJ
ajst-3255	30	7	gyroscopes	gyroscope	NOUN
ajst-3255	30	8	and	and	CCONJ
ajst-3255	30	9	the	the	DET
ajst-3255	30	10	hemispherical	hemispherical	ADJ
ajst-3255	30	11	resonance	resonance	NOUN
ajst-3255	30	12	gyroscope	gyroscope	NOUN
ajst-3255	30	13	.	.	PUNCT
ajst-3255	31	1	2.1.2	2.1.2	X
ajst-3255	31	2	.	.	NOUN
ajst-3255	31	3	optical	optical	ADJ
ajst-3255	31	4	gyroscope	gyroscope	NOUN
ajst-3255	31	5	optical	optical	ADJ
ajst-3255	31	6	gyroscope	gyroscope	NOUN
ajst-3255	31	7	includes	include	VERB
ajst-3255	31	8	ring	ring	NOUN
ajst-3255	31	9	laser	laser	NOUN
ajst-3255	31	10	gyroscope	gyroscope	NOUN
ajst-3255	31	11	and	and	CCONJ
ajst-3255	31	12	fiber	fiber	NOUN
ajst-3255	31	13	optic	optic	NOUN
ajst-3255	31	14	gyroscope[2	gyroscope[2	PROPN
ajst-3255	31	15	]	]	PUNCT
ajst-3255	31	16	.	.	PUNCT
ajst-3255	32	1	figure	figure	NOUN
ajst-3255	32	2	1	1	NUM
ajst-3255	32	3	.	.	PUNCT
ajst-3255	33	1	ring	ring	NOUN
ajst-3255	33	2	laser	laser	NOUN
ajst-3255	33	3	gyroscope	gyroscope	NOUN
ajst-3255	33	4	model[4	model[4	PROPN
ajst-3255	33	5	]	]	PUNCT
ajst-3255	33	6	figure	figure	NOUN
ajst-3255	33	7	1	1	NUM
ajst-3255	33	8	shows	show	VERB
ajst-3255	33	9	a	a	DET
ajst-3255	33	10	simple	simple	ADJ
ajst-3255	33	11	model	model	NOUN
ajst-3255	33	12	of	of	ADP
ajst-3255	33	13	a	a	DET
ajst-3255	33	14	triangular	triangular	NOUN
ajst-3255	33	15	ring	ring	NOUN
ajst-3255	33	16	laser	laser	NOUN
ajst-3255	33	17	gyroscope	gyroscope	NOUN
ajst-3255	33	18	.	.	PUNCT
ajst-3255	34	1	ring	ring	NOUN
ajst-3255	34	2	laser	laser	NOUN
ajst-3255	34	3	gyroscope	gyroscope	NOUN
ajst-3255	34	4	has	have	VERB
ajst-3255	34	5	high	high	ADJ
ajst-3255	34	6	precision	precision	NOUN
ajst-3255	34	7	,	,	PUNCT
ajst-3255	34	8	good	good	ADJ
ajst-3255	34	9	stability	stability	NOUN
ajst-3255	34	10	and	and	CCONJ
ajst-3255	34	11	long	long	ADJ
ajst-3255	34	12	service	service	NOUN
ajst-3255	34	13	life	life	NOUN
ajst-3255	34	14	.	.	PUNCT
ajst-3255	35	1	the	the	DET
ajst-3255	35	2	main	main	ADJ
ajst-3255	35	3	advantage	advantage	NOUN
ajst-3255	35	4	of	of	ADP
ajst-3255	35	5	ring	ring	NOUN
ajst-3255	35	6	laser	laser	NOUN
ajst-3255	35	7	gyroscope	gyroscope	NOUN
ajst-3255	35	8	is	be	AUX
ajst-3255	35	9	that	that	SCONJ
ajst-3255	35	10	it	it	PRON
ajst-3255	35	11	has	have	VERB
ajst-3255	35	12	no	no	DET
ajst-3255	35	13	rotor	rotor	NOUN
ajst-3255	35	14	moving	move	VERB
ajst-3255	35	15	parts	part	NOUN
ajst-3255	35	16	.	.	PUNCT
ajst-3255	36	1	the	the	DET
ajst-3255	36	2	research	research	NOUN
ajst-3255	36	3	on	on	ADP
ajst-3255	36	4	ring	ring	NOUN
ajst-3255	36	5	laser	laser	NOUN
ajst-3255	36	6	gyroscope	gyroscope	NOUN
ajst-3255	36	7	abroad	abroad	ADV
ajst-3255	36	8	mainly	mainly	ADV
ajst-3255	36	9	focus	focus	VERB
ajst-3255	36	10	on	on	ADP
ajst-3255	36	11	improving	improve	VERB
ajst-3255	36	12	its	its	PRON
ajst-3255	36	13	accuracy	accuracy	NOUN
ajst-3255	36	14	.	.	PUNCT
ajst-3255	37	1	the	the	DET
ajst-3255	37	2	development	development	NOUN
ajst-3255	37	3	interests	interest	NOUN
ajst-3255	37	4	can	can	AUX
ajst-3255	37	5	be	be	AUX
ajst-3255	37	6	divided	divide	VERB
ajst-3255	37	7	into	into	ADP
ajst-3255	37	8	two	two	NUM
ajst-3255	37	9	directions	direction	NOUN
ajst-3255	37	10	.	.	PUNCT
ajst-3255	38	1	one	one	NUM
ajst-3255	38	2	is	be	AUX
ajst-3255	38	3	miniaturized	miniaturize	VERB
ajst-3255	38	4	and	and	CCONJ
ajst-3255	38	5	low	low	ADJ
ajst-3255	38	6	accuracy	accuracy	NOUN
ajst-3255	38	7	ring	ring	NOUN
ajst-3255	38	8	laser	laser	NOUN
ajst-3255	38	9	gyroscope	gyroscope	NOUN
ajst-3255	38	10	.	.	PUNCT
ajst-3255	39	1	the	the	DET
ajst-3255	39	2	other	other	ADJ
ajst-3255	39	3	is	be	AUX
ajst-3255	39	4	large	large	ADJ
ajst-3255	39	5	size	size	NOUN
ajst-3255	39	6	and	and	CCONJ
ajst-3255	39	7	ultra	ultra	ADJ
ajst-3255	39	8	-	-	ADJ
ajst-3255	39	9	high	high	ADJ
ajst-3255	39	10	accuracy	accuracy	NOUN
ajst-3255	39	11	ring	ring	NOUN
ajst-3255	39	12	laser	laser	NOUN
ajst-3255	39	13	gyroscope	gyroscope	NOUN
ajst-3255	39	14	.	.	PUNCT
ajst-3255	40	1	in	in	ADP
ajst-3255	40	2	2021	2021	NUM
ajst-3255	40	3	,	,	PUNCT
ajst-3255	40	4	y.broslavets	y.broslavet	VERB
ajst-3255	40	5	et	et	PROPN
ajst-3255	40	6	al	al	PROPN
ajst-3255	40	7	.	.	PROPN
ajst-3255	41	1	from	from	ADP
ajst-3255	41	2	the	the	DET
ajst-3255	41	3	moscow	moscow	PROPN
ajst-3255	41	4	institute	institute	PROPN
ajst-3255	41	5	of	of	ADP
ajst-3255	41	6	physics	physics	PROPN
ajst-3255	41	7	and	and	CCONJ
ajst-3255	41	8	technology	technology	NOUN
ajst-3255	41	9	studied	study	VERB
ajst-3255	41	10	the	the	DET
ajst-3255	41	11	multi	multi	ADJ
ajst-3255	41	12	frequency	frequency	NOUN
ajst-3255	41	13	solid	solid	ADJ
ajst-3255	41	14	-	-	PUNCT
ajst-3255	41	15	state	state	NOUN
ajst-3255	41	16	ring	ring	NOUN
ajst-3255	41	17	laser	laser	NOUN
ajst-3255	41	18	gyroscope	gyroscope	NOUN
ajst-3255	41	19	based	base	VERB
ajst-3255	41	20	on	on	ADP
ajst-3255	41	21	yag	yag	NOUN
ajst-3255	41	22	:	:	PUNCT
ajst-3255	42	1	cr4	cr4	PROPN
ajst-3255	42	2	+	+	PROPN
ajst-3255	42	3	,	,	PUNCT
ajst-3255	42	4	and	and	CCONJ
ajst-3255	42	5	determine	determine	VERB
ajst-3255	42	6	the	the	DET
ajst-3255	42	7	laser	laser	NOUN
ajst-3255	42	8	parameters	parameter	NOUN
ajst-3255	42	9	to	to	PART
ajst-3255	42	10	ensure	ensure	VERB
ajst-3255	42	11	the	the	DET
ajst-3255	42	12	maximum	maximum	ADJ
ajst-3255	42	13	accuracy	accuracy	NOUN
ajst-3255	42	14	of	of	ADP
ajst-3255	42	15	angle	angle	NOUN
ajst-3255	42	16	measurements[5	measurements[5	NOUN
ajst-3255	42	17	]	]	PUNCT
ajst-3255	42	18	.	.	PUNCT
ajst-3255	43	1	g.barantsev	g.barantsev	VERB
ajst-3255	43	2	et	et	PROPN
ajst-3255	43	3	al	al	PROPN
ajst-3255	43	4	.	.	PROPN
ajst-3255	44	1	from	from	ADP
ajst-3255	44	2	lomonosov	lomonosov	PROPN
ajst-3255	44	3	moscow	moscow	PROPN
ajst-3255	44	4	state	state	PROPN
ajst-3255	44	5	university	university	PROPN
ajst-3255	44	6	analyzed	analyze	VERB
ajst-3255	44	7	the	the	DET
ajst-3255	44	8	effect	effect	NOUN
ajst-3255	44	9	of	of	ADP
ajst-3255	44	10	the	the	DET
ajst-3255	44	11	dynamic	dynamic	ADJ
ajst-3255	44	12	elastic	elastic	ADJ
ajst-3255	44	13	torsion	torsion	NOUN
ajst-3255	44	14	on	on	ADP
ajst-3255	44	15	attitude	attitude	NOUN
ajst-3255	44	16	accuracy	accuracy	NOUN
ajst-3255	44	17	of	of	ADP
ajst-3255	44	18	the	the	DET
ajst-3255	44	19	navigation	navigation	NOUN
ajst-3255	44	20	system	system	NOUN
ajst-3255	44	21	caused	cause	VERB
ajst-3255	44	22	by	by	ADP
ajst-3255	44	23	mechanical	mechanical	ADJ
ajst-3255	44	24	dithering	dither	VERB
ajst-3255	44	25	device	device	NOUN
ajst-3255	44	26	of	of	ADP
ajst-3255	44	27	ring	ring	NOUN
ajst-3255	44	28	laser	laser	NOUN
ajst-3255	44	29	gyroscope	gyroscope	NOUN
ajst-3255	44	30	,	,	PUNCT
ajst-3255	44	31	and	and	CCONJ
ajst-3255	44	32	proposed	propose	VERB
ajst-3255	44	33	a	a	DET
ajst-3255	44	34	method	method	NOUN
ajst-3255	44	35	to	to	PART
ajst-3255	44	36	calibrate	calibrate	VERB
ajst-3255	44	37	this	this	DET
ajst-3255	44	38	parameters	parameter	NOUN
ajst-3255	44	39	by	by	ADP
ajst-3255	44	40	compensating	compensate	VERB
ajst-3255	44	41	attitude	attitude	NOUN
ajst-3255	44	42	integral[6	integral[6	NOUN
ajst-3255	44	43	]	]	PUNCT
ajst-3255	44	44	.	.	PUNCT
ajst-3255	45	1	for	for	ADP
ajst-3255	45	2	ring	ring	NOUN
ajst-3255	45	3	laser	laser	NOUN
ajst-3255	45	4	gyroscope	gyroscope	NOUN
ajst-3255	45	5	,	,	PUNCT
ajst-3255	45	6	68	68	NUM
ajst-3255	45	7	the	the	DET
ajst-3255	45	8	commercial	commercial	ADJ
ajst-3255	45	9	undersea	undersea	ADJ
ajst-3255	45	10	precision	precision	NOUN
ajst-3255	45	11	inspector	inspector	NOUN
ajst-3255	45	12	of	of	ADP
ajst-3255	45	13	kawasaki	kawasaki	PROPN
ajst-3255	45	14	heavy	heavy	PROPN
ajst-3255	45	15	industries	industry	NOUN
ajst-3255	45	16	was	be	AUX
ajst-3255	45	17	equipped	equip	VERB
ajst-3255	45	18	with	with	ADP
ajst-3255	45	19	sprint	sprint	ADJ
ajst-3255	45	20	-	-	PUNCT
ajst-3255	45	21	nav	nav	NOUN
ajst-3255	45	22	700	700	NUM
ajst-3255	45	23	,	,	PUNCT
ajst-3255	45	24	which	which	PRON
ajst-3255	45	25	uses	use	VERB
ajst-3255	45	26	honeywell	honeywell	PROPN
ajst-3255	45	27	’s	’s	PART
ajst-3255	45	28	ring	ring	NOUN
ajst-3255	45	29	laser	laser	NOUN
ajst-3255	45	30	gyroscope	gyroscope	NOUN
ajst-3255	45	31	and	and	CCONJ
ajst-3255	45	32	accelerometer	accelerometer	VERB
ajst-3255	45	33	for	for	ADP
ajst-3255	45	34	navigation[2	navigation[2	NOUN
ajst-3255	45	35	]	]	PUNCT
ajst-3255	45	36	.	.	PUNCT
ajst-3255	46	1	for	for	ADP
ajst-3255	46	2	fiber	fiber	NOUN
ajst-3255	46	3	optic	optic	NOUN
ajst-3255	46	4	gyroscope	gyroscope	NOUN
ajst-3255	46	5	,	,	PUNCT
ajst-3255	46	6	the	the	DET
ajst-3255	46	7	research	research	NOUN
ajst-3255	46	8	mainly	mainly	ADV
ajst-3255	46	9	focuses	focus	VERB
ajst-3255	46	10	on	on	ADP
ajst-3255	46	11	using	use	VERB
ajst-3255	46	12	a	a	DET
ajst-3255	46	13	variety	variety	NOUN
ajst-3255	46	14	of	of	ADP
ajst-3255	46	15	optical	optical	ADJ
ajst-3255	46	16	modulation	modulation	NOUN
ajst-3255	46	17	and	and	CCONJ
ajst-3255	46	18	process	process	NOUN
ajst-3255	46	19	optimization	optimization	NOUN
ajst-3255	46	20	methods	method	NOUN
ajst-3255	46	21	to	to	PART
ajst-3255	46	22	improve	improve	VERB
ajst-3255	46	23	the	the	DET
ajst-3255	46	24	comprehensive	comprehensive	ADJ
ajst-3255	46	25	performance	performance	NOUN
ajst-3255	46	26	of	of	ADP
ajst-3255	46	27	fiber	fiber	NOUN
ajst-3255	46	28	optic	optic	NOUN
ajst-3255	46	29	gyroscope	gyroscope	NOUN
ajst-3255	46	30	,	,	PUNCT
ajst-3255	46	31	so	so	SCONJ
ajst-3255	46	32	as	as	SCONJ
ajst-3255	46	33	to	to	PART
ajst-3255	46	34	improve	improve	VERB
ajst-3255	46	35	its	its	PRON
ajst-3255	46	36	accuracy	accuracy	NOUN
ajst-3255	46	37	and	and	CCONJ
ajst-3255	46	38	reduce	reduce	VERB
ajst-3255	46	39	its	its	PRON
ajst-3255	46	40	cost	cost	NOUN
ajst-3255	46	41	.	.	PUNCT
ajst-3255	47	1	researchers	researcher	NOUN
ajst-3255	47	2	from	from	ADP
ajst-3255	47	3	universidade	universidade	PROPN
ajst-3255	47	4	estadual	estadual	PROPN
ajst-3255	47	5	de	de	PROPN
ajst-3255	47	6	campinas	campinas	PROPN
ajst-3255	47	7	proposed	propose	VERB
ajst-3255	47	8	a	a	DET
ajst-3255	47	9	method	method	NOUN
ajst-3255	47	10	to	to	PART
ajst-3255	47	11	improve	improve	VERB
ajst-3255	47	12	the	the	DET
ajst-3255	47	13	linearity	linearity	NOUN
ajst-3255	47	14	of	of	ADP
ajst-3255	47	15	open	open	ADJ
ajst-3255	47	16	-	-	PUNCT
ajst-3255	47	17	loop	loop	NOUN
ajst-3255	47	18	fiber	fiber	NOUN
ajst-3255	47	19	optic	optic	NOUN
ajst-3255	47	20	gyroscope	gyroscope	NOUN
ajst-3255	47	21	based	base	VERB
ajst-3255	47	22	on	on	ADP
ajst-3255	47	23	mean	mean	ADJ
ajst-3255	47	24	demodulation	demodulation	NOUN
ajst-3255	47	25	scheme	scheme	NOUN
ajst-3255	47	26	.	.	PUNCT
ajst-3255	48	1	this	this	DET
ajst-3255	48	2	method	method	NOUN
ajst-3255	48	3	can	can	AUX
ajst-3255	48	4	improve	improve	VERB
ajst-3255	48	5	the	the	DET
ajst-3255	48	6	linearity	linearity	NOUN
ajst-3255	48	7	of	of	ADP
ajst-3255	48	8	sensor	sensor	NOUN
ajst-3255	48	9	output	output	NOUN
ajst-3255	48	10	by	by	ADP
ajst-3255	48	11	65	65	NUM
ajst-3255	48	12	times	time	NOUN
ajst-3255	48	13	,	,	PUNCT
ajst-3255	48	14	and	and	CCONJ
ajst-3255	48	15	the	the	DET
ajst-3255	48	16	nonlinear	nonlinear	ADJ
ajst-3255	48	17	error	error	NOUN
ajst-3255	48	18	is	be	AUX
ajst-3255	48	19	better	well	ADJ
ajst-3255	48	20	than	than	ADP
ajst-3255	48	21	2.3×10	2.3×10	NOUN
ajst-3255	48	22	-	-	NOUN
ajst-3255	48	23	4[7	4[7	NUM
ajst-3255	48	24	]	]	PUNCT
ajst-3255	48	25	.	.	PUNCT
ajst-3255	49	1	for	for	ADP
ajst-3255	49	2	the	the	DET
ajst-3255	49	3	fiber	fiber	NOUN
ajst-3255	49	4	optic	optic	NOUN
ajst-3255	49	5	gyroscope	gyroscope	NOUN
ajst-3255	49	6	inertial	inertial	NOUN
ajst-3255	49	7	systems	system	NOUN
ajst-3255	49	8	,	,	PUNCT
ajst-3255	49	9	advanced	advanced	ADJ
ajst-3255	49	10	navigation	navigation	NOUN
ajst-3255	49	11	company	company	NOUN
ajst-3255	49	12	from	from	ADP
ajst-3255	49	13	australia	australia	PROPN
ajst-3255	49	14	launch	launch	VERB
ajst-3255	49	15	the	the	DET
ajst-3255	49	16	digital	digital	ADJ
ajst-3255	49	17	fiber	fiber	NOUN
ajst-3255	49	18	optic	optic	NOUN
ajst-3255	49	19	gyroscope	gyroscope	PROPN
ajst-3255	49	20	inertial	inertial	ADJ
ajst-3255	49	21	navigation	navigation	NOUN
ajst-3255	49	22	system	system	NOUN
ajst-3255	49	23	boreas	boreas	PROPN
ajst-3255	49	24	d90	d90	PROPN
ajst-3255	49	25	,	,	PUNCT
ajst-3255	49	26	which	which	PRON
ajst-3255	49	27	can	can	AUX
ajst-3255	49	28	provide	provide	VERB
ajst-3255	49	29	0.01(	0.01(	NUM
ajst-3255	49	30	°	°	PART
ajst-3255	49	31	)/h	)/h	PUNCT
ajst-3255	49	32	strategic	strategic	ADJ
ajst-3255	49	33	bias	bias	NOUN
ajst-3255	49	34	stability	stability	NOUN
ajst-3255	49	35	,	,	PUNCT
ajst-3255	49	36	0.005	0.005	NUM
ajst-3255	49	37	°	°	NUM
ajst-3255	49	38	roll	roll	NOUN
ajst-3255	49	39	/	/	SYM
ajst-3255	49	40	pitch	pitch	NOUN
ajst-3255	49	41	accuracy	accuracy	NOUN
ajst-3255	49	42	and	and	CCONJ
ajst-3255	49	43	0.01	0.01	NUM
ajst-3255	49	44	°	°	ADJ
ajst-3255	49	45	heading	heading	ADJ
ajst-3255	49	46	accuracy	accuracy	NOUN
ajst-3255	49	47	on	on	ADP
ajst-3255	49	48	the	the	DET
ajst-3255	49	49	basis	basis	NOUN
ajst-3255	49	50	of	of	ADP
ajst-3255	49	51	significantly	significantly	ADV
ajst-3255	49	52	reducing	reduce	VERB
ajst-3255	49	53	costs[2	costs[2	PROPN
ajst-3255	49	54	]	]	PUNCT
ajst-3255	49	55	.	.	PUNCT
ajst-3255	50	1	for	for	ADP
ajst-3255	50	2	applications	application	NOUN
ajst-3255	50	3	,	,	PUNCT
ajst-3255	50	4	the	the	DET
ajst-3255	50	5	norwegian	norwegian	ADJ
ajst-3255	50	6	coast	coast	PROPN
ajst-3255	50	7	guard	guard	PROPN
ajst-3255	50	8	’s	’s	PART
ajst-3255	50	9	p6615	p6615	PROPN
ajst-3255	50	10	jan	jan	PROPN
ajst-3255	50	11	mayen	mayen	PROPN
ajst-3255	50	12	class	class	PROPN
ajst-3255	50	13	warship	warship	NOUN
ajst-3255	50	14	was	be	AUX
ajst-3255	50	15	equipped	equip	VERB
ajst-3255	50	16	with	with	ADP
ajst-3255	50	17	a	a	DET
ajst-3255	50	18	strapdown	strapdown	ADJ
ajst-3255	50	19	fiber	fiber	NOUN
ajst-3255	50	20	optic	optic	NOUN
ajst-3255	50	21	gyroscope	gyroscope	NOUN
ajst-3255	50	22	navigation	navigation	NOUN
ajst-3255	50	23	system	system	NOUN
ajst-3255	50	24	provided	provide	VERB
ajst-3255	50	25	by	by	ADP
ajst-3255	50	26	the	the	DET
ajst-3255	50	27	french	french	ADJ
ajst-3255	50	28	ixblue	ixblue	PROPN
ajst-3255	50	29	company	company	NOUN
ajst-3255	50	30	in	in	ADP
ajst-3255	50	31	january	january	PROPN
ajst-3255	50	32	2021	2021	NUM
ajst-3255	50	33	.	.	PUNCT
ajst-3255	51	1	russian	russian	ADJ
ajst-3255	51	2	optolink	optolink	PROPN
ajst-3255	51	3	company	company	NOUN
ajst-3255	51	4	installed	instal	VERB
ajst-3255	51	5	an	an	DET
ajst-3255	51	6	fiber	fiber	NOUN
ajst-3255	51	7	optical	optical	ADJ
ajst-3255	51	8	gyroscope	gyroscope	NOUN
ajst-3255	51	9	on	on	ADP
ajst-3255	51	10	soyuz	soyuz	NOUN
ajst-3255	51	11	ms-7	ms-7	NOUN
ajst-3255	51	12	spacecraft	spacecraft	NOUN
ajst-3255	51	13	to	to	PART
ajst-3255	51	14	help	help	VERB
ajst-3255	51	15	it	it	PRON
ajst-3255	51	16	complete	complete	VERB
ajst-3255	51	17	its	its	PRON
ajst-3255	51	18	landing	land	VERB
ajst-3255	51	19	mission[2	mission[2	PROPN
ajst-3255	51	20	]	]	PUNCT
ajst-3255	51	21	.	.	PUNCT
ajst-3255	52	1	2.1.3	2.1.3	NUM
ajst-3255	52	2	.	.	PUNCT
ajst-3255	52	3	hemispherical	hemispherical	ADJ
ajst-3255	52	4	resonator	resonator	NOUN
ajst-3255	52	5	gyroscope	gyroscope	NOUN
ajst-3255	52	6	hemispheric	hemispheric	ADJ
ajst-3255	52	7	resonator	resonator	NOUN
ajst-3255	52	8	gyroscope	gyroscope	NOUN
ajst-3255	52	9	is	be	AUX
ajst-3255	52	10	a	a	DET
ajst-3255	52	11	kind	kind	NOUN
ajst-3255	52	12	of	of	ADP
ajst-3255	52	13	coriolis	corioli	NOUN
ajst-3255	52	14	vibratory	vibratory	NOUN
ajst-3255	52	15	gyroscope	gyroscope	NOUN
ajst-3255	52	16	.	.	PUNCT
ajst-3255	53	1	compared	compare	VERB
ajst-3255	53	2	with	with	ADP
ajst-3255	53	3	optical	optical	ADJ
ajst-3255	53	4	gyroscope	gyroscope	NOUN
ajst-3255	53	5	,	,	PUNCT
ajst-3255	53	6	it	it	PRON
ajst-3255	53	7	has	have	VERB
ajst-3255	53	8	the	the	DET
ajst-3255	53	9	advantage	advantage	NOUN
ajst-3255	53	10	of	of	ADP
ajst-3255	53	11	miniaturization	miniaturization	NOUN
ajst-3255	53	12	.	.	PUNCT
ajst-3255	54	1	it	it	PRON
ajst-3255	54	2	has	have	VERB
ajst-3255	54	3	a	a	DET
ajst-3255	54	4	board	board	NOUN
ajst-3255	54	5	application	application	NOUN
ajst-3255	54	6	prospect	prospect	NOUN
ajst-3255	54	7	in	in	ADP
ajst-3255	54	8	the	the	DET
ajst-3255	54	9	aerospace	aerospace	NOUN
ajst-3255	54	10	field	field	NOUN
ajst-3255	54	11	and	and	CCONJ
ajst-3255	54	12	is	be	AUX
ajst-3255	54	13	a	a	DET
ajst-3255	54	14	trend	trend	NOUN
ajst-3255	54	15	of	of	ADP
ajst-3255	54	16	the	the	DET
ajst-3255	54	17	future	future	ADJ
ajst-3255	54	18	gyroscope	gyroscope	NOUN
ajst-3255	54	19	.	.	PUNCT
ajst-3255	55	1	the	the	DET
ajst-3255	55	2	research	research	NOUN
ajst-3255	55	3	on	on	ADP
ajst-3255	55	4	hemispheric	hemispheric	ADJ
ajst-3255	55	5	resonator	resonator	NOUN
ajst-3255	55	6	gyroscope	gyroscope	NOUN
ajst-3255	55	7	has	have	AUX
ajst-3255	55	8	been	be	AUX
ajst-3255	55	9	carried	carry	VERB
ajst-3255	55	10	both	both	CCONJ
ajst-3255	55	11	abroad	abroad	ADV
ajst-3255	55	12	and	and	CCONJ
ajst-3255	55	13	at	at	ADP
ajst-3255	55	14	home	home	NOUN
ajst-3255	55	15	.	.	PUNCT
ajst-3255	56	1	the	the	DET
ajst-3255	56	2	united	united	PROPN
ajst-3255	56	3	states	states	PROPN
ajst-3255	56	4	is	be	AUX
ajst-3255	56	5	the	the	DET
ajst-3255	56	6	first	first	ADJ
ajst-3255	56	7	country	country	NOUN
ajst-3255	56	8	to	to	PART
ajst-3255	56	9	study	study	VERB
ajst-3255	56	10	hemispheric	hemispheric	ADJ
ajst-3255	56	11	resonator	resonator	NOUN
ajst-3255	56	12	gyroscope	gyroscope	NOUN
ajst-3255	56	13	,	,	PUNCT
ajst-3255	56	14	and	and	CCONJ
ajst-3255	56	15	its	its	PRON
ajst-3255	56	16	gyroscope	gyroscope	NOUN
ajst-3255	56	17	’s	’s	PART
ajst-3255	56	18	accuracy	accuracy	NOUN
ajst-3255	56	19	can	can	AUX
ajst-3255	56	20	reach	reach	VERB
ajst-3255	56	21	0.0008(	0.0008(	NOUN
ajst-3255	56	22	°	°	NOUN
ajst-3255	56	23	)/h	)/h	PUNCT
ajst-3255	56	24	.	.	PUNCT
ajst-3255	57	1	in	in	ADP
ajst-3255	57	2	about	about	ADP
ajst-3255	57	3	1986	1986	NUM
ajst-3255	57	4	,	,	PUNCT
ajst-3255	57	5	many	many	ADJ
ajst-3255	57	6	hemispheric	hemispheric	ADJ
ajst-3255	57	7	resonator	resonator	NOUN
ajst-3255	57	8	gyroscope	gyroscope	NOUN
ajst-3255	57	9	products	product	NOUN
ajst-3255	57	10	had	have	AUX
ajst-3255	57	11	come	come	VERB
ajst-3255	57	12	out	out	ADP
ajst-3255	57	13	,	,	PUNCT
ajst-3255	57	14	including	include	VERB
ajst-3255	57	15	hrg158	hrg158	PROPN
ajst-3255	57	16	(	(	PUNCT
ajst-3255	57	17	which	which	PRON
ajst-3255	57	18	can	can	AUX
ajst-3255	57	19	work	work	VERB
ajst-3255	57	20	under	under	ADP
ajst-3255	57	21	harsh	harsh	ADJ
ajst-3255	57	22	conditions	condition	NOUN
ajst-3255	57	23	)	)	PUNCT
ajst-3255	57	24	,	,	PUNCT
ajst-3255	57	25	hrg130	hrg130	PROPN
ajst-3255	57	26	(	(	PUNCT
ajst-3255	57	27	which	which	PRON
ajst-3255	57	28	is	be	AUX
ajst-3255	57	29	used	use	VERB
ajst-3255	57	30	to	to	PART
ajst-3255	57	31	intercept	intercept	VERB
ajst-3255	57	32	strategic	strategic	ADJ
ajst-3255	57	33	missiles	missile	NOUN
ajst-3255	57	34	)	)	PUNCT
ajst-3255	57	35	,	,	PUNCT
ajst-3255	57	36	etc[8][9	etc[8][9	NOUN
ajst-3255	57	37	]	]	PUNCT
ajst-3255	57	38	.	.	PUNCT
ajst-3255	58	1	in	in	ADP
ajst-3255	58	2	1994	1994	NUM
ajst-3255	58	3	,	,	PUNCT
ajst-3255	58	4	delco	delco	PROPN
ajst-3255	58	5	company	company	NOUN
ajst-3255	58	6	invested	invest	VERB
ajst-3255	58	7	more	more	ADJ
ajst-3255	58	8	resources	resource	NOUN
ajst-3255	58	9	in	in	ADP
ajst-3255	58	10	the	the	DET
ajst-3255	58	11	hemispheric	hemispheric	ADJ
ajst-3255	58	12	resonator	resonator	NOUN
ajst-3255	58	13	gyroscope	gyroscope	NOUN
ajst-3255	58	14	.	.	PUNCT
ajst-3255	59	1	the	the	DET
ajst-3255	59	2	hrg130r	hrg130r	PROPN
ajst-3255	59	3	was	be	AUX
ajst-3255	59	4	improved	improve	VERB
ajst-3255	59	5	on	on	ADP
ajst-3255	59	6	the	the	DET
ajst-3255	59	7	basis	basis	NOUN
ajst-3255	59	8	of	of	ADP
ajst-3255	59	9	hrg130	hrg130	PROPN
ajst-3255	59	10	to	to	PART
ajst-3255	59	11	make	make	VERB
ajst-3255	59	12	it	it	PRON
ajst-3255	59	13	able	able	ADJ
ajst-3255	59	14	to	to	PART
ajst-3255	59	15	withstand	withstand	VERB
ajst-3255	59	16	a	a	DET
ajst-3255	59	17	worse	bad	ADJ
ajst-3255	59	18	working	working	NOUN
ajst-3255	59	19	environment	environment	NOUN
ajst-3255	59	20	.	.	PUNCT
ajst-3255	60	1	another	another	DET
ajst-3255	60	2	improved	improve	VERB
ajst-3255	60	3	design	design	NOUN
ajst-3255	60	4	,	,	PUNCT
ajst-3255	60	5	hrg130p	hrg130p	PRON
ajst-3255	60	6	,	,	PUNCT
ajst-3255	60	7	eliminated	eliminate	VERB
ajst-3255	60	8	the	the	DET
ajst-3255	60	9	problem	problem	NOUN
ajst-3255	60	10	of	of	ADP
ajst-3255	60	11	nitrogen	nitrogen	NOUN
ajst-3255	60	12	leakage	leakage	NOUN
ajst-3255	60	13	.	.	PUNCT
ajst-3255	61	1	within	within	ADP
ajst-3255	61	2	the	the	DET
ajst-3255	61	3	measurement	measurement	NOUN
ajst-3255	61	4	range	range	NOUN
ajst-3255	61	5	of	of	ADP
ajst-3255	61	6	±12(	±12(	PROPN
ajst-3255	61	7	°	°	PROPN
ajst-3255	61	8	)/h	)/h	PUNCT
ajst-3255	61	9	,	,	PUNCT
ajst-3255	61	10	its	its	PRON
ajst-3255	61	11	accuracy	accuracy	NOUN
ajst-3255	61	12	can	can	AUX
ajst-3255	61	13	reach	reach	VERB
ajst-3255	61	14	0.0005(	0.0005(	NOUN
ajst-3255	61	15	°	°	NOUN
ajst-3255	61	16	)/h	)/h	PUNCT
ajst-3255	61	17	.	.	PUNCT
ajst-3255	62	1	it	it	PRON
ajst-3255	62	2	has	have	AUX
ajst-3255	62	3	accumulated	accumulate	VERB
ajst-3255	62	4	more	more	ADJ
ajst-3255	62	5	than	than	ADP
ajst-3255	62	6	50	50	NUM
ajst-3255	62	7	million	million	NUM
ajst-3255	62	8	flight	flight	NOUN
ajst-3255	62	9	hours	hour	NOUN
ajst-3255	62	10	in	in	ADP
ajst-3255	62	11	various	various	ADJ
ajst-3255	62	12	space	space	NOUN
ajst-3255	62	13	missions	mission	NOUN
ajst-3255	62	14	,	,	PUNCT
ajst-3255	62	15	and	and	CCONJ
ajst-3255	62	16	is	be	AUX
ajst-3255	62	17	currently	currently	ADV
ajst-3255	62	18	the	the	DET
ajst-3255	62	19	main	main	ADJ
ajst-3255	62	20	product	product	NOUN
ajst-3255	62	21	.	.	PUNCT
ajst-3255	63	1	since	since	SCONJ
ajst-3255	63	2	the	the	DET
ajst-3255	63	3	1980s	1980s	NUM
ajst-3255	63	4	,	,	PUNCT
ajst-3255	63	5	with	with	ADP
ajst-3255	63	6	the	the	DET
ajst-3255	63	7	research	research	NOUN
ajst-3255	63	8	of	of	ADP
ajst-3255	63	9	hemispheric	hemispheric	ADJ
ajst-3255	63	10	resonator	resonator	NOUN
ajst-3255	63	11	gyroscope	gyroscope	NOUN
ajst-3255	63	12	in	in	ADP
ajst-3255	63	13	the	the	DET
ajst-3255	63	14	united	united	PROPN
ajst-3255	63	15	states	states	PROPN
ajst-3255	63	16	,	,	PUNCT
ajst-3255	63	17	the	the	DET
ajst-3255	63	18	former	former	ADJ
ajst-3255	63	19	soviet	soviet	PROPN
ajst-3255	63	20	union	union	PROPN
ajst-3255	63	21	has	have	AUX
ajst-3255	63	22	also	also	ADV
ajst-3255	63	23	carried	carry	VERB
ajst-3255	63	24	out	out	ADP
ajst-3255	63	25	research	research	NOUN
ajst-3255	63	26	.	.	PUNCT
ajst-3255	64	1	russia	russia	PROPN
ajst-3255	64	2	has	have	AUX
ajst-3255	64	3	developed	develop	VERB
ajst-3255	64	4	a	a	DET
ajst-3255	64	5	rate	rate	NOUN
ajst-3255	64	6	integral	integral	ADJ
ajst-3255	64	7	hemispheric	hemispheric	ADJ
ajst-3255	64	8	resonator	resonator	NOUN
ajst-3255	64	9	gyroscope	gyroscope	NOUN
ajst-3255	64	10	with	with	ADP
ajst-3255	64	11	an	an	DET
ajst-3255	64	12	accuracy	accuracy	NOUN
ajst-3255	64	13	of	of	ADP
ajst-3255	64	14	10	10	NUM
ajst-3255	64	15	-	-	PUNCT
ajst-3255	64	16	4(	4(	NOUN
ajst-3255	64	17	°	°	NOUN
ajst-3255	64	18	)/h[10	)/h[10	NOUN
ajst-3255	64	19	]	]	PUNCT
ajst-3255	64	20	.	.	PUNCT
ajst-3255	65	1	the	the	DET
ajst-3255	65	2	hemispheric	hemispheric	ADJ
ajst-3255	65	3	resonator	resonator	NOUN
ajst-3255	65	4	gyroscope	gyroscope	NOUN
ajst-3255	65	5	hrg-30ig	hrg-30ig	PROPN
ajst-3255	65	6	developed	develop	VERB
ajst-3255	65	7	by	by	ADP
ajst-3255	65	8	russian	russian	ADJ
ajst-3255	65	9	medicon	medicon	NOUN
ajst-3255	65	10	company	company	NOUN
ajst-3255	65	11	has	have	AUX
ajst-3255	65	12	developed	develop	VERB
ajst-3255	65	13	a	a	DET
ajst-3255	65	14	special	special	ADJ
ajst-3255	65	15	leveling	leveling	NOUN
ajst-3255	65	16	technology	technology	NOUN
ajst-3255	65	17	,	,	PUNCT
ajst-3255	65	18	with	with	ADP
ajst-3255	65	19	a	a	DET
ajst-3255	65	20	dynamic	dynamic	ADJ
ajst-3255	65	21	range	range	NOUN
ajst-3255	65	22	of	of	ADP
ajst-3255	65	23	>	>	X
ajst-3255	65	24	600(	600(	NUM
ajst-3255	65	25	°	°	NUM
ajst-3255	65	26	)/s	)/s	ADJ
ajst-3255	65	27	,	,	PUNCT
ajst-3255	65	28	bias	bias	NOUN
ajst-3255	65	29	stability	stability	NOUN
ajst-3255	65	30	of	of	ADP
ajst-3255	65	31	<	<	X
ajst-3255	65	32	0.01(	0.01(	X
ajst-3255	65	33	°	°	NOUN
ajst-3255	65	34	)/h[11	)/h[11	NOUN
ajst-3255	65	35	]	]	PUNCT
ajst-3255	65	36	,	,	PUNCT
ajst-3255	65	37	which	which	PRON
ajst-3255	65	38	has	have	AUX
ajst-3255	65	39	been	be	AUX
ajst-3255	65	40	applied	apply	VERB
ajst-3255	65	41	in	in	ADP
ajst-3255	65	42	the	the	DET
ajst-3255	65	43	aerospace	aerospace	NOUN
ajst-3255	65	44	field	field	NOUN
ajst-3255	65	45	to	to	ADP
ajst-3255	65	46	some	some	DET
ajst-3255	65	47	extent	extent	NOUN
ajst-3255	65	48	.	.	PUNCT
ajst-3255	66	1	in	in	ADP
ajst-3255	66	2	resent	resent	NOUN
ajst-3255	66	3	years	year	NOUN
ajst-3255	66	4	,	,	PUNCT
ajst-3255	66	5	russia	russia	PROPN
ajst-3255	66	6	has	have	AUX
ajst-3255	66	7	further	far	ADV
ajst-3255	66	8	deepened	deepen	VERB
ajst-3255	66	9	its	its	PRON
ajst-3255	66	10	research	research	NOUN
ajst-3255	66	11	on	on	ADP
ajst-3255	66	12	hemispheric	hemispheric	ADJ
ajst-3255	66	13	resonator	resonator	NOUN
ajst-3255	66	14	gyroscope	gyroscope	NOUN
ajst-3255	66	15	and	and	CCONJ
ajst-3255	66	16	made	make	VERB
ajst-3255	66	17	some	some	DET
ajst-3255	66	18	progress	progress	NOUN
ajst-3255	66	19	.	.	PUNCT
ajst-3255	67	1	russian	russian	ADJ
ajst-3255	67	2	inertial	inertial	ADJ
ajst-3255	67	3	navigation	navigation	NOUN
ajst-3255	67	4	system	system	NOUN
ajst-3255	67	5	is	be	AUX
ajst-3255	67	6	equipped	equip	VERB
ajst-3255	67	7	with	with	ADP
ajst-3255	67	8	a	a	DET
ajst-3255	67	9	large	large	ADJ
ajst-3255	67	10	number	number	NOUN
ajst-3255	67	11	of	of	ADP
ajst-3255	67	12	hemispheric	hemispheric	ADJ
ajst-3255	67	13	resonator	resonator	NOUN
ajst-3255	67	14	gyroscope	gyroscope	NOUN
ajst-3255	67	15	systems	system	NOUN
ajst-3255	67	16	.	.	PUNCT
ajst-3255	68	1	in	in	ADP
ajst-3255	68	2	addition	addition	NOUN
ajst-3255	68	3	to	to	ADP
ajst-3255	68	4	the	the	DET
ajst-3255	68	5	united	united	PROPN
ajst-3255	68	6	states	states	PROPN
ajst-3255	68	7	and	and	CCONJ
ajst-3255	68	8	russia	russia	PROPN
ajst-3255	68	9	,	,	PUNCT
ajst-3255	68	10	other	other	ADJ
ajst-3255	68	11	countries	country	NOUN
ajst-3255	68	12	,	,	PUNCT
ajst-3255	68	13	such	such	ADJ
ajst-3255	68	14	as	as	ADP
ajst-3255	68	15	france	france	PROPN
ajst-3255	68	16	,	,	PUNCT
ajst-3255	68	17	have	have	AUX
ajst-3255	68	18	also	also	ADV
ajst-3255	68	19	carried	carry	VERB
ajst-3255	68	20	out	out	ADP
ajst-3255	68	21	research	research	NOUN
ajst-3255	68	22	on	on	ADP
ajst-3255	68	23	hemispheric	hemispheric	ADJ
ajst-3255	68	24	resonator	resonator	NOUN
ajst-3255	68	25	gyroscope	gyroscope	NOUN
ajst-3255	68	26	.	.	PUNCT
ajst-3255	69	1	this	this	DET
ajst-3255	69	2	pater	pater	NOUN
ajst-3255	69	3	will	will	AUX
ajst-3255	69	4	not	not	PART
ajst-3255	69	5	introduce	introduce	VERB
ajst-3255	69	6	it	it	PRON
ajst-3255	69	7	specifically	specifically	ADV
ajst-3255	69	8	.	.	PUNCT
ajst-3255	70	1	china	china	PROPN
ajst-3255	70	2	has	have	AUX
ajst-3255	70	3	also	also	ADV
ajst-3255	70	4	carried	carry	VERB
ajst-3255	70	5	out	out	ADP
ajst-3255	70	6	research	research	NOUN
ajst-3255	70	7	on	on	ADP
ajst-3255	70	8	hemispheric	hemispheric	ADJ
ajst-3255	70	9	resonator	resonator	NOUN
ajst-3255	70	10	gyroscope	gyroscope	NOUN
ajst-3255	70	11	,	,	PUNCT
ajst-3255	70	12	and	and	CCONJ
ajst-3255	70	13	has	have	AUX
ajst-3255	70	14	made	make	VERB
ajst-3255	70	15	some	some	DET
ajst-3255	70	16	progress	progress	NOUN
ajst-3255	70	17	.	.	PUNCT
ajst-3255	71	1	in	in	ADP
ajst-3255	71	2	2002	2002	NUM
ajst-3255	71	3	,	,	PUNCT
ajst-3255	71	4	cet-26	cet-26	NOUN
ajst-3255	71	5	developed	develop	VERB
ajst-3255	71	6	the	the	DET
ajst-3255	71	7	first	first	ADJ
ajst-3255	71	8	hemispheric	hemispheric	ADJ
ajst-3255	71	9	resonator	resonator	NOUN
ajst-3255	71	10	gyroscope	gyroscope	NOUN
ajst-3255	71	11	system	system	NOUN
ajst-3255	71	12	and	and	CCONJ
ajst-3255	71	13	after	after	ADP
ajst-3255	71	14	that	that	PRON
ajst-3255	71	15	,	,	PUNCT
ajst-3255	71	16	it	it	PRON
ajst-3255	71	17	continued	continue	VERB
ajst-3255	71	18	to	to	PART
ajst-3255	71	19	solve	solve	VERB
ajst-3255	71	20	many	many	ADJ
ajst-3255	71	21	key	key	ADJ
ajst-3255	71	22	technical	technical	ADJ
ajst-3255	71	23	problems	problem	NOUN
ajst-3255	71	24	.	.	PUNCT
ajst-3255	72	1	in	in	ADP
ajst-3255	72	2	2018	2018	NUM
ajst-3255	72	3	,	,	PUNCT
ajst-3255	72	4	a	a	DET
ajst-3255	72	5	hemispheric	hemispheric	ADJ
ajst-3255	72	6	resonator	resonator	NOUN
ajst-3255	72	7	gyroscope	gyroscope	NOUN
ajst-3255	72	8	system	system	NOUN
ajst-3255	72	9	developed	develop	VERB
ajst-3255	72	10	by	by	ADP
ajst-3255	72	11	the	the	DET
ajst-3255	72	12	shanghai	shanghai	PROPN
ajst-3255	72	13	academy	academy	PROPN
ajst-3255	72	14	of	of	ADP
ajst-3255	72	15	spaceflight	spaceflight	ADJ
ajst-3255	72	16	technology	technology	NOUN
ajst-3255	72	17	completed	complete	VERB
ajst-3255	72	18	its	its	PRON
ajst-3255	72	19	first	first	ADJ
ajst-3255	72	20	flight	flight	NOUN
ajst-3255	72	21	on	on	ADP
ajst-3255	72	22	a	a	DET
ajst-3255	72	23	communication	communication	NOUN
ajst-3255	72	24	technology	technology	NOUN
ajst-3255	72	25	experimental	experimental	ADJ
ajst-3255	72	26	satellite	satellite	NOUN
ajst-3255	72	27	.	.	PUNCT
ajst-3255	73	1	the	the	DET
ajst-3255	73	2	hemispheric	hemispheric	ADJ
ajst-3255	73	3	resonator	resonator	NOUN
ajst-3255	73	4	gyroscope	gyroscope	NOUN
ajst-3255	73	5	system	system	NOUN
ajst-3255	73	6	in	in	ADP
ajst-3255	73	7	china	china	PROPN
ajst-3255	73	8	is	be	AUX
ajst-3255	73	9	still	still	ADV
ajst-3255	73	10	in	in	ADP
ajst-3255	73	11	the	the	DET
ajst-3255	73	12	experimental	experimental	ADJ
ajst-3255	73	13	stage	stage	NOUN
ajst-3255	73	14	,	,	PUNCT
ajst-3255	73	15	and	and	CCONJ
ajst-3255	73	16	its	its	PRON
ajst-3255	73	17	accuracy	accuracy	NOUN
ajst-3255	73	18	can	can	AUX
ajst-3255	73	19	only	only	ADV
ajst-3255	73	20	meet	meet	VERB
ajst-3255	73	21	the	the	DET
ajst-3255	73	22	low	low	ADJ
ajst-3255	73	23	dynamic	dynamic	ADJ
ajst-3255	73	24	requirements	requirement	NOUN
ajst-3255	73	25	in	in	ADP
ajst-3255	73	26	the	the	DET
ajst-3255	73	27	aerospace	aerospace	NOUN
ajst-3255	73	28	field[12	field[12	NOUN
ajst-3255	73	29	]	]	PUNCT
ajst-3255	73	30	.	.	PUNCT
ajst-3255	74	1	it	it	PRON
ajst-3255	74	2	is	be	AUX
ajst-3255	74	3	still	still	ADV
ajst-3255	74	4	far	far	ADV
ajst-3255	74	5	from	from	ADP
ajst-3255	74	6	being	be	AUX
ajst-3255	74	7	widely	widely	ADV
ajst-3255	74	8	used	use	VERB
ajst-3255	74	9	and	and	CCONJ
ajst-3255	74	10	still	still	ADV
ajst-3255	74	11	has	have	VERB
ajst-3255	74	12	a	a	DET
ajst-3255	74	13	certain	certain	ADJ
ajst-3255	74	14	gap	gap	NOUN
ajst-3255	74	15	with	with	ADP
ajst-3255	74	16	foreign	foreign	ADJ
ajst-3255	74	17	countries	country	NOUN
ajst-3255	74	18	,	,	PUNCT
ajst-3255	74	19	so	so	ADV
ajst-3255	74	20	further	further	ADJ
ajst-3255	74	21	research	research	NOUN
ajst-3255	74	22	is	be	AUX
ajst-3255	74	23	needed[13	needed[13	NOUN
ajst-3255	74	24	]	]	X
ajst-3255	74	25	.	.	PUNCT
ajst-3255	75	1	2.2	2.2	NUM
ajst-3255	75	2	.	.	PUNCT
ajst-3255	76	1	satellite	satellite	NOUN
ajst-3255	76	2	navigation	navigation	NOUN
ajst-3255	76	3	2.2.1	2.2.1	NUM
ajst-3255	76	4	.	.	PUNCT
ajst-3255	77	1	a	a	DET
ajst-3255	77	2	brief	brief	ADJ
ajst-3255	77	3	introduction	introduction	NOUN
ajst-3255	77	4	to	to	ADP
ajst-3255	77	5	the	the	DET
ajst-3255	77	6	principles	principle	NOUN
ajst-3255	77	7	of	of	ADP
ajst-3255	77	8	satellite	satellite	NOUN
ajst-3255	77	9	navigation	navigation	NOUN
ajst-3255	77	10	satellite	satellite	NOUN
ajst-3255	77	11	navigation	navigation	NOUN
ajst-3255	77	12	is	be	AUX
ajst-3255	77	13	a	a	DET
ajst-3255	77	14	technology	technology	NOUN
ajst-3255	77	15	that	that	PRON
ajst-3255	77	16	uses	use	VERB
ajst-3255	77	17	satellites	satellite	NOUN
ajst-3255	77	18	to	to	PART
ajst-3255	77	19	locate	locate	VERB
ajst-3255	77	20	users	user	NOUN
ajst-3255	77	21	in	in	ADP
ajst-3255	77	22	space	space	NOUN
ajst-3255	77	23	.	.	PUNCT
ajst-3255	78	1	satellites	satellite	NOUN
ajst-3255	78	2	interacts	interact	VERB
ajst-3255	78	3	with	with	ADP
ajst-3255	78	4	the	the	DET
ajst-3255	78	5	users	user	NOUN
ajst-3255	78	6	through	through	ADP
ajst-3255	78	7	radio	radio	NOUN
ajst-3255	78	8	waves	wave	NOUN
ajst-3255	78	9	,	,	PUNCT
ajst-3255	78	10	and	and	CCONJ
ajst-3255	78	11	users	user	NOUN
ajst-3255	78	12	calculates	calculate	VERB
ajst-3255	78	13	its	its	PRON
ajst-3255	78	14	own	own	ADJ
ajst-3255	78	15	position	position	NOUN
ajst-3255	78	16	through	through	ADP
ajst-3255	78	17	the	the	DET
ajst-3255	78	18	radio	radio	NOUN
ajst-3255	78	19	messages	message	NOUN
ajst-3255	78	20	of	of	ADP
ajst-3255	78	21	several	several	ADJ
ajst-3255	78	22	satellites[14	satellites[14	NOUN
ajst-3255	78	23	]	]	PUNCT
ajst-3255	78	24	.	.	PUNCT
ajst-3255	79	1	gps	gps	PROPN
ajst-3255	79	2	,	,	PUNCT
ajst-3255	79	3	galileo	galileo	PROPN
ajst-3255	79	4	,	,	PUNCT
ajst-3255	79	5	glonass	glonass	NOUN
ajst-3255	79	6	use	use	VERB
ajst-3255	79	7	the	the	DET
ajst-3255	79	8	principle	principle	NOUN
ajst-3255	79	9	of	of	ADP
ajst-3255	79	10	side	side	NOUN
ajst-3255	79	11	-	-	PUNCT
ajst-3255	79	12	surveying	survey	VERB
ajst-3255	79	13	intersection	intersection	NOUN
ajst-3255	79	14	positioning	positioning	NOUN
ajst-3255	79	15	.	.	PUNCT
ajst-3255	80	1	that	that	PRON
ajst-3255	80	2	is	be	AUX
ajst-3255	80	3	,	,	PUNCT
ajst-3255	80	4	to	to	PART
ajst-3255	80	5	measure	measure	VERB
ajst-3255	80	6	the	the	DET
ajst-3255	80	7	distance	distance	NOUN
ajst-3255	80	8	between	between	ADP
ajst-3255	80	9	the	the	DET
ajst-3255	80	10	target	target	NOUN
ajst-3255	80	11	to	to	PART
ajst-3255	80	12	be	be	AUX
ajst-3255	80	13	measured	measure	VERB
ajst-3255	80	14	and	and	CCONJ
ajst-3255	80	15	several	several	ADJ
ajst-3255	80	16	known	know	VERB
ajst-3255	80	17	points	point	NOUN
ajst-3255	80	18	.	.	PUNCT
ajst-3255	81	1	then	then	ADV
ajst-3255	81	2	,	,	PUNCT
ajst-3255	81	3	through	through	ADP
ajst-3255	81	4	several	several	ADJ
ajst-3255	81	5	satellites	satellite	NOUN
ajst-3255	81	6	,	,	PUNCT
ajst-3255	81	7	the	the	DET
ajst-3255	81	8	position	position	NOUN
ajst-3255	81	9	of	of	ADP
ajst-3255	81	10	the	the	DET
ajst-3255	81	11	target	target	NOUN
ajst-3255	81	12	can	can	AUX
ajst-3255	81	13	be	be	AUX
ajst-3255	81	14	calculated	calculate	VERB
ajst-3255	81	15	.	.	PUNCT
ajst-3255	82	1	figure	figure	NOUN
ajst-3255	82	2	2	2	NUM
ajst-3255	82	3	.	.	PUNCT
ajst-3255	82	4	principle	principle	NOUN
ajst-3255	82	5	of	of	ADP
ajst-3255	82	6	the	the	DET
ajst-3255	82	7	side	side	NOUN
ajst-3255	82	8	-	-	PUNCT
ajst-3255	82	9	surveying	survey	VERB
ajst-3255	82	10	intersection[14	intersection[14	PROPN
ajst-3255	82	11	]	]	PUNCT
ajst-3255	82	12	since	since	SCONJ
ajst-3255	82	13	conventional	conventional	ADJ
ajst-3255	82	14	satellite	satellite	NOUN
ajst-3255	82	15	navigation	navigation	NOUN
ajst-3255	82	16	is	be	AUX
ajst-3255	82	17	only	only	ADV
ajst-3255	82	18	applicable	applicable	ADJ
ajst-3255	82	19	when	when	SCONJ
ajst-3255	82	20	the	the	DET
ajst-3255	82	21	target	target	NOUN
ajst-3255	82	22	is	be	AUX
ajst-3255	82	23	lower	low	ADJ
ajst-3255	82	24	than	than	ADP
ajst-3255	82	25	the	the	DET
ajst-3255	82	26	satellites	satellite	NOUN
ajst-3255	82	27	’	’	PART
ajst-3255	82	28	orbit	orbit	NOUN
ajst-3255	82	29	,	,	PUNCT
ajst-3255	82	30	satellite	satellite	NOUN
ajst-3255	82	31	navigation	navigation	NOUN
ajst-3255	82	32	is	be	AUX
ajst-3255	82	33	mainly	mainly	ADV
ajst-3255	82	34	applicable	applicable	ADJ
ajst-3255	82	35	to	to	ADP
ajst-3255	82	36	low	low	ADJ
ajst-3255	82	37	earth	earth	NOUN
ajst-3255	82	38	orbit	orbit	NOUN
ajst-3255	82	39	spacecraft	spacecraft	NOUN
ajst-3255	82	40	and	and	CCONJ
ajst-3255	82	41	spacecraft	spacecraft	NOUN
ajst-3255	82	42	at	at	ADP
ajst-3255	82	43	launch	launch	NOUN
ajst-3255	82	44	phase	phase	NOUN
ajst-3255	82	45	.	.	PUNCT
ajst-3255	83	1	for	for	ADP
ajst-3255	83	2	satellite	satellite	NOUN
ajst-3255	83	3	navigation	navigation	NOUN
ajst-3255	83	4	of	of	ADP
ajst-3255	83	5	high	high	ADJ
ajst-3255	83	6	orbit	orbit	NOUN
ajst-3255	83	7	spacecraft	spacecraft	NOUN
ajst-3255	83	8	,	,	PUNCT
ajst-3255	83	9	more	more	ADJ
ajst-3255	83	10	research	research	NOUN
ajst-3255	83	11	is	be	AUX
ajst-3255	83	12	needed	need	VERB
ajst-3255	83	13	.	.	PUNCT
ajst-3255	84	1	the	the	DET
ajst-3255	84	2	research	research	NOUN
ajst-3255	84	3	of	of	ADP
ajst-3255	84	4	satellite	satellite	NOUN
ajst-3255	84	5	navigation	navigation	NOUN
ajst-3255	84	6	is	be	AUX
ajst-3255	84	7	mainly	mainly	ADV
ajst-3255	84	8	focus	focus	VERB
ajst-3255	84	9	on	on	ADP
ajst-3255	84	10	improving	improve	VERB
ajst-3255	84	11	its	its	PRON
ajst-3255	84	12	accuracy	accuracy	NOUN
ajst-3255	84	13	,	,	PUNCT
ajst-3255	84	14	improving	improve	VERB
ajst-3255	84	15	its	its	PRON
ajst-3255	84	16	algorithm	algorithm	NOUN
ajst-3255	84	17	,	,	PUNCT
ajst-3255	84	18	expanding	expand	VERB
ajst-3255	84	19	the	the	DET
ajst-3255	84	20	application	application	NOUN
ajst-3255	84	21	scope	scope	NOUN
ajst-3255	84	22	of	of	ADP
ajst-3255	84	23	satellite	satellite	NOUN
ajst-3255	84	24	navigation	navigation	NOUN
ajst-3255	84	25	,	,	PUNCT
ajst-3255	84	26	deploying	deploy	VERB
ajst-3255	84	27	more	more	ADJ
ajst-3255	84	28	satellites	satellite	NOUN
ajst-3255	84	29	and	and	CCONJ
ajst-3255	84	30	so	so	ADV
ajst-3255	84	31	on	on	ADV
ajst-3255	84	32	.	.	PUNCT
ajst-3255	85	1	due	due	ADP
ajst-3255	85	2	to	to	ADP
ajst-3255	85	3	the	the	DET
ajst-3255	85	4	limitation	limitation	NOUN
ajst-3255	85	5	of	of	ADP
ajst-3255	85	6	satellite	satellite	NOUN
ajst-3255	85	7	navigation	navigation	NOUN
ajst-3255	85	8	for	for	ADP
ajst-3255	85	9	spacecraft	spacecraft	NOUN
ajst-3255	85	10	,	,	PUNCT
ajst-3255	85	11	more	more	ADJ
ajst-3255	85	12	development	development	NOUN
ajst-3255	85	13	direction	direction	NOUN
ajst-3255	85	14	lies	lie	VERB
ajst-3255	85	15	in	in	ADP
ajst-3255	85	16	how	how	SCONJ
ajst-3255	85	17	to	to	PART
ajst-3255	85	18	better	well	ADV
ajst-3255	85	19	combine	combine	VERB
ajst-3255	85	20	with	with	ADP
ajst-3255	85	21	other	other	ADJ
ajst-3255	85	22	navigation	navigation	NOUN
ajst-3255	85	23	methods	method	NOUN
ajst-3255	85	24	like	like	ADP
ajst-3255	85	25	inertial	inertial	ADJ
ajst-3255	85	26	navigation	navigation	NOUN
ajst-3255	85	27	for	for	ADP
ajst-3255	85	28	integrated	integrated	ADJ
ajst-3255	85	29	navigation	navigation	NOUN
ajst-3255	85	30	.	.	PUNCT
ajst-3255	86	1	2.2.2	2.2.2	X
ajst-3255	86	2	.	.	X
ajst-3255	86	3	measurement	measurement	NOUN
ajst-3255	86	4	and	and	CCONJ
ajst-3255	86	5	control	control	NOUN
ajst-3255	86	6	of	of	ADP
ajst-3255	86	7	low	low	ADJ
ajst-3255	86	8	and	and	CCONJ
ajst-3255	86	9	high	high	ADJ
ajst-3255	86	10	orbit	orbit	NOUN
ajst-3255	86	11	spacecraft	spacecraft	NOUN
ajst-3255	86	12	at	at	ADP
ajst-3255	86	13	present	present	ADJ
ajst-3255	86	14	,	,	PUNCT
ajst-3255	86	15	the	the	DET
ajst-3255	86	16	research	research	NOUN
ajst-3255	86	17	of	of	ADP
ajst-3255	86	18	satellite	satellite	NOUN
ajst-3255	86	19	navigation	navigation	NOUN
ajst-3255	86	20	system	system	NOUN
ajst-3255	86	21	in	in	ADP
ajst-3255	86	22	low	low	ADJ
ajst-3255	86	23	and	and	CCONJ
ajst-3255	86	24	medium	medium	ADJ
ajst-3255	86	25	orbit	orbit	NOUN
ajst-3255	86	26	has	have	AUX
ajst-3255	86	27	been	be	AUX
ajst-3255	86	28	relatively	relatively	ADV
ajst-3255	86	29	mature	mature	ADJ
ajst-3255	86	30	,	,	PUNCT
ajst-3255	86	31	such	such	ADJ
ajst-3255	86	32	as	as	SCONJ
ajst-3255	86	33	china	china	PROPN
ajst-3255	86	34	’s	’s	PART
ajst-3255	86	35	beidou	beidou	PROPN
ajst-3255	86	36	navigation	navigation	NOUN
ajst-3255	86	37	satellite	satellite	NOUN
ajst-3255	86	38	has	have	VERB
ajst-3255	86	39	the	the	DET
ajst-3255	86	40	ability	ability	NOUN
ajst-3255	86	41	to	to	PART
ajst-3255	86	42	provide	provide	VERB
ajst-3255	86	43	the	the	DET
ajst-3255	86	44	measurement	measurement	NOUN
ajst-3255	86	45	and	and	CCONJ
ajst-3255	86	46	control	control	NOUN
ajst-3255	86	47	service	service	NOUN
ajst-3255	86	48	for	for	ADP
ajst-3255	86	49	spacecraft[16	spacecraft[16	NOUN
ajst-3255	86	50	]	]	PUNCT
ajst-3255	86	51	.	.	PUNCT
ajst-3255	87	1	in	in	ADP
ajst-3255	87	2	march	march	PROPN
ajst-3255	87	3	2010	2010	NUM
ajst-3255	87	4	,	,	PUNCT
ajst-3255	87	5	the	the	DET
ajst-3255	87	6	remote	remote	ADJ
ajst-3255	87	7	sensing	sense	VERB
ajst-3255	87	8	9	9	NUM
ajst-3255	87	9	satellite	satellite	NOUN
ajst-3255	87	10	carried	carry	VERB
ajst-3255	87	11	the	the	DET
ajst-3255	87	12	beidou-1	beidou-1	PROPN
ajst-3255	87	13	subscriber	subscriber	NOUN
ajst-3255	87	14	computer	computer	NOUN
ajst-3255	87	15	,	,	PUNCT
ajst-3255	87	16	verifying	verify	VERB
ajst-3255	87	17	the	the	DET
ajst-3255	87	18	beidou	beidou	NOUN
ajst-3255	87	19	spacebased	spacebase	VERB
ajst-3255	87	20	tt&c	tt&c	PROPN
ajst-3255	87	21	(	(	PUNCT
ajst-3255	87	22	tracking	tracking	NOUN
ajst-3255	87	23	,	,	PUNCT
ajst-3255	87	24	telemetry	telemetry	NOUN
ajst-3255	87	25	and	and	CCONJ
ajst-3255	87	26	command	command	NOUN
ajst-3255	87	27	)	)	PUNCT
ajst-3255	87	28	technology[17	technology[17	PROPN
ajst-3255	87	29	]	]	PUNCT
ajst-3255	87	30	.	.	PUNCT
ajst-3255	88	1	with	with	ADP
ajst-3255	88	2	the	the	DET
ajst-3255	88	3	successful	successful	ADJ
ajst-3255	88	4	global	global	ADJ
ajst-3255	88	5	network	network	NOUN
ajst-3255	88	6	of	of	ADP
ajst-3255	88	7	beidou-3	beidou-3	NUM
ajst-3255	88	8	satellites	satellite	NOUN
ajst-3255	88	9	,	,	PUNCT
ajst-3255	88	10	the	the	DET
ajst-3255	88	11	beidou	beidou	NOUN
ajst-3255	88	12	communication	communication	NOUN
ajst-3255	88	13	system	system	NOUN
ajst-3255	88	14	can	can	AUX
ajst-3255	88	15	69	69	NUM
ajst-3255	88	16	solve	solve	VERB
ajst-3255	88	17	the	the	DET
ajst-3255	88	18	problem	problem	NOUN
ajst-3255	88	19	of	of	ADP
ajst-3255	88	20	all	all	DET
ajst-3255	88	21	-	-	PUNCT
ajst-3255	88	22	day	day	NOUN
ajst-3255	88	23	tt&c	tt&c	PROPN
ajst-3255	88	24	of	of	ADP
ajst-3255	88	25	low	low	ADJ
ajst-3255	88	26	earth	earth	NOUN
ajst-3255	88	27	orbit	orbit	NOUN
ajst-3255	88	28	spacecraft	spacecraft	NOUN
ajst-3255	88	29	.	.	PUNCT
ajst-3255	89	1	the	the	DET
ajst-3255	89	2	global	global	ADJ
ajst-3255	89	3	message	message	NOUN
ajst-3255	89	4	system	system	NOUN
ajst-3255	89	5	carried	carry	VERB
ajst-3255	89	6	by	by	ADP
ajst-3255	89	7	beidou-3	beidou-3	NUM
ajst-3255	89	8	satellite	satellite	NOUN
ajst-3255	89	9	can	can	AUX
ajst-3255	89	10	achieve	achieve	VERB
ajst-3255	89	11	global	global	ADJ
ajst-3255	89	12	real	real	ADJ
ajst-3255	89	13	-	-	PUNCT
ajst-3255	89	14	time	time	NOUN
ajst-3255	89	15	coverage	coverage	NOUN
ajst-3255	89	16	,	,	PUNCT
ajst-3255	89	17	and	and	CCONJ
ajst-3255	89	18	the	the	DET
ajst-3255	89	19	service	service	NOUN
ajst-3255	89	20	scope	scope	NOUN
ajst-3255	89	21	covers	cover	VERB
ajst-3255	89	22	the	the	DET
ajst-3255	89	23	global	global	ADJ
ajst-3255	89	24	surface	surface	NOUN
ajst-3255	89	25	and	and	CCONJ
ajst-3255	89	26	1000	1000	NUM
ajst-3255	89	27	km	km	NOUN
ajst-3255	89	28	above[18][19	above[18][19	PROPN
ajst-3255	89	29	]	]	PUNCT
ajst-3255	89	30	.	.	PUNCT
ajst-3255	90	1	the	the	DET
ajst-3255	90	2	research	research	NOUN
ajst-3255	90	3	on	on	ADP
ajst-3255	90	4	satellite	satellite	NOUN
ajst-3255	90	5	navigation	navigation	NOUN
ajst-3255	90	6	for	for	ADP
ajst-3255	90	7	high	high	ADJ
ajst-3255	90	8	orbit	orbit	NOUN
ajst-3255	90	9	spacecraft	spacecraft	NOUN
ajst-3255	90	10	is	be	AUX
ajst-3255	90	11	still	still	ADV
ajst-3255	90	12	not	not	PART
ajst-3255	90	13	enough	enough	ADJ
ajst-3255	90	14	.	.	PUNCT
ajst-3255	91	1	in	in	ADP
ajst-3255	91	2	2018	2018	NUM
ajst-3255	91	3	,	,	PUNCT
ajst-3255	91	4	jiaxin	jiaxin	NOUN
ajst-3255	91	5	chai	chai	NOUN
ajst-3255	91	6	et	et	PROPN
ajst-3255	91	7	al	al	PROPN
ajst-3255	91	8	.	.	PROPN
ajst-3255	91	9	studied	study	VERB
ajst-3255	91	10	the	the	DET
ajst-3255	91	11	strength	strength	NOUN
ajst-3255	91	12	of	of	ADP
ajst-3255	91	13	receiving	receive	VERB
ajst-3255	91	14	navigation	navigation	NOUN
ajst-3255	91	15	signals	signal	NOUN
ajst-3255	91	16	and	and	CCONJ
ajst-3255	91	17	the	the	DET
ajst-3255	91	18	multi	multi	ADJ
ajst-3255	91	19	constellation	constellation	NOUN
ajst-3255	91	20	joint	joint	ADJ
ajst-3255	91	21	navigation	navigation	NOUN
ajst-3255	91	22	mode[20	mode[20	PROPN
ajst-3255	91	23	]	]	PUNCT
ajst-3255	91	24	.	.	PUNCT
ajst-3255	92	1	in	in	ADP
ajst-3255	92	2	2020	2020	NUM
ajst-3255	92	3	,	,	PUNCT
ajst-3255	92	4	meng	meng	PROPN
ajst-3255	92	5	wang	wang	PROPN
ajst-3255	92	6	et	et	PROPN
ajst-3255	92	7	al	al	PROPN
ajst-3255	92	8	.	.	PROPN
ajst-3255	92	9	conducted	conduct	VERB
ajst-3255	92	10	a	a	DET
ajst-3255	92	11	comparative	comparative	ADJ
ajst-3255	92	12	analysis	analysis	NOUN
ajst-3255	92	13	of	of	ADP
ajst-3255	92	14	low	low	ADJ
ajst-3255	92	15	orbit	orbit	NOUN
ajst-3255	92	16	spacecraft	spacecraft	NOUN
ajst-3255	92	17	and	and	CCONJ
ajst-3255	92	18	high	high	ADJ
ajst-3255	92	19	orbit	orbit	NOUN
ajst-3255	92	20	spacecraft	spacecraft	NOUN
ajst-3255	92	21	,	,	PUNCT
ajst-3255	92	22	and	and	CCONJ
ajst-3255	92	23	gave	give	VERB
ajst-3255	92	24	a	a	DET
ajst-3255	92	25	detailed	detailed	ADJ
ajst-3255	92	26	assessment[21	assessment[21	NOUN
ajst-3255	92	27	]	]	PUNCT
ajst-3255	92	28	.	.	PUNCT
ajst-3255	93	1	navigation	navigation	NOUN
ajst-3255	93	2	of	of	ADP
ajst-3255	93	3	high	high	ADJ
ajst-3255	93	4	orbit	orbit	NOUN
ajst-3255	93	5	spacecraft	spacecraft	NOUN
ajst-3255	93	6	are	be	AUX
ajst-3255	93	7	facing	face	VERB
ajst-3255	93	8	with	with	ADP
ajst-3255	93	9	the	the	DET
ajst-3255	93	10	problems	problem	NOUN
ajst-3255	93	11	like	like	ADP
ajst-3255	93	12	weak	weak	ADJ
ajst-3255	93	13	navigation	navigation	NOUN
ajst-3255	93	14	signals	signal	NOUN
ajst-3255	93	15	received	receive	VERB
ajst-3255	93	16	and	and	CCONJ
ajst-3255	93	17	few	few	ADJ
ajst-3255	93	18	high	high	ADJ
ajst-3255	93	19	orbit	orbit	NOUN
ajst-3255	93	20	satellites	satellite	NOUN
ajst-3255	93	21	.	.	PUNCT
ajst-3255	94	1	navigation	navigation	NOUN
ajst-3255	94	2	of	of	ADP
ajst-3255	94	3	high	high	ADJ
ajst-3255	94	4	orbit	orbit	NOUN
ajst-3255	94	5	spacecraft	spacecraft	NOUN
ajst-3255	94	6	using	use	VERB
ajst-3255	94	7	satellite	satellite	NOUN
ajst-3255	94	8	navigation	navigation	NOUN
ajst-3255	94	9	is	be	AUX
ajst-3255	94	10	currently	currently	ADV
ajst-3255	94	11	a	a	DET
ajst-3255	94	12	hot	hot	ADJ
ajst-3255	94	13	topic	topic	NOUN
ajst-3255	94	14	at	at	ADP
ajst-3255	94	15	home	home	NOUN
ajst-3255	94	16	and	and	CCONJ
ajst-3255	94	17	abroad[22	abroad[22	NOUN
ajst-3255	94	18	]	]	PUNCT
ajst-3255	94	19	.	.	PUNCT
ajst-3255	95	1	figure	figure	NOUN
ajst-3255	95	2	3	3	NUM
ajst-3255	95	3	.	.	NOUN
ajst-3255	95	4	beidou-3	beidou-3	X
ajst-3255	95	5	satellite[23	satellite[23	PROPN
ajst-3255	95	6	]	]	PUNCT
ajst-3255	95	7	2.3	2.3	NUM
ajst-3255	95	8	.	.	PUNCT
ajst-3255	96	1	celestial	celestial	ADJ
ajst-3255	96	2	navigation	navigation	NOUN
ajst-3255	96	3	celestial	celestial	ADJ
ajst-3255	96	4	navigation	navigation	NOUN
ajst-3255	96	5	is	be	AUX
ajst-3255	96	6	an	an	DET
ajst-3255	96	7	autonomous	autonomous	ADJ
ajst-3255	96	8	navigation	navigation	NOUN
ajst-3255	96	9	method	method	NOUN
ajst-3255	96	10	.	.	PUNCT
ajst-3255	97	1	the	the	DET
ajst-3255	97	2	advantage	advantage	NOUN
ajst-3255	97	3	of	of	ADP
ajst-3255	97	4	celestial	celestial	ADJ
ajst-3255	97	5	navigation	navigation	NOUN
ajst-3255	97	6	are	be	AUX
ajst-3255	97	7	high	high	ADJ
ajst-3255	97	8	reliability	reliability	NOUN
ajst-3255	97	9	,	,	PUNCT
ajst-3255	97	10	simple	simple	ADJ
ajst-3255	97	11	and	and	CCONJ
ajst-3255	97	12	mature	mature	ADJ
ajst-3255	97	13	,	,	PUNCT
ajst-3255	97	14	not	not	PART
ajst-3255	97	15	interfered	interfere	VERB
ajst-3255	97	16	by	by	ADP
ajst-3255	97	17	electromagnetic	electromagnetic	NOUN
ajst-3255	97	18	,	,	PUNCT
ajst-3255	97	19	and	and	CCONJ
ajst-3255	97	20	the	the	DET
ajst-3255	97	21	error	error	NOUN
ajst-3255	97	22	does	do	AUX
ajst-3255	97	23	not	not	PART
ajst-3255	97	24	drift	drift	VERB
ajst-3255	97	25	with	with	ADP
ajst-3255	97	26	time[24	time[24	NOUN
ajst-3255	97	27	]	]	PUNCT
ajst-3255	97	28	.	.	PUNCT
ajst-3255	98	1	celestial	celestial	ADJ
ajst-3255	98	2	navigation	navigation	NOUN
ajst-3255	98	3	can	can	AUX
ajst-3255	98	4	be	be	AUX
ajst-3255	98	5	divided	divide	VERB
ajst-3255	98	6	into	into	ADP
ajst-3255	98	7	near	near	ADJ
ajst-3255	98	8	-	-	PUNCT
ajst-3255	98	9	earth	earth	NOUN
ajst-3255	98	10	celestial	celestial	ADJ
ajst-3255	98	11	navigation	navigation	NOUN
ajst-3255	98	12	and	and	CCONJ
ajst-3255	98	13	deep	deep	ADJ
ajst-3255	98	14	space	space	NOUN
ajst-3255	98	15	celestial	celestial	ADJ
ajst-3255	98	16	navigation	navigation	NOUN
ajst-3255	98	17	.	.	PUNCT
ajst-3255	99	1	deep	deep	ADJ
ajst-3255	99	2	space	space	NOUN
ajst-3255	99	3	celestial	celestial	ADJ
ajst-3255	99	4	navigation	navigation	NOUN
ajst-3255	99	5	can	can	AUX
ajst-3255	99	6	be	be	AUX
ajst-3255	99	7	classified	classify	VERB
ajst-3255	99	8	according	accord	VERB
ajst-3255	99	9	to	to	ADP
ajst-3255	99	10	angle	angle	NOUN
ajst-3255	99	11	measurement	measurement	NOUN
ajst-3255	99	12	navigation	navigation	NOUN
ajst-3255	99	13	,	,	PUNCT
ajst-3255	99	14	velocity	velocity	NOUN
ajst-3255	99	15	measurement	measurement	NOUN
ajst-3255	99	16	navigation	navigation	NOUN
ajst-3255	99	17	and	and	CCONJ
ajst-3255	99	18	range	range	NOUN
ajst-3255	99	19	measurement	measurement	NOUN
ajst-3255	99	20	navigation	navigation	NOUN
ajst-3255	99	21	.	.	PUNCT
ajst-3255	100	1	the	the	DET
ajst-3255	100	2	angle	angle	NOUN
ajst-3255	100	3	measurement	measurement	NOUN
ajst-3255	100	4	navigation	navigation	NOUN
ajst-3255	100	5	method	method	NOUN
ajst-3255	100	6	uses	use	VERB
ajst-3255	100	7	optical	optical	ADJ
ajst-3255	100	8	sensors	sensor	NOUN
ajst-3255	100	9	to	to	PART
ajst-3255	100	10	obtain	obtain	VERB
ajst-3255	100	11	images	image	NOUN
ajst-3255	100	12	of	of	ADP
ajst-3255	100	13	astronomical	astronomical	ADJ
ajst-3255	100	14	objects	object	NOUN
ajst-3255	100	15	,	,	PUNCT
ajst-3255	100	16	and	and	CCONJ
ajst-3255	100	17	obtains	obtain	VERB
ajst-3255	100	18	the	the	DET
ajst-3255	100	19	orientation	orientation	NOUN
ajst-3255	100	20	information	information	NOUN
ajst-3255	100	21	of	of	ADP
ajst-3255	100	22	the	the	DET
ajst-3255	100	23	detector	detector	NOUN
ajst-3255	100	24	relative	relative	ADJ
ajst-3255	100	25	to	to	ADP
ajst-3255	100	26	the	the	DET
ajst-3255	100	27	target	target	NOUN
ajst-3255	100	28	object	object	VERB
ajst-3255	100	29	through	through	ADP
ajst-3255	100	30	image	image	NOUN
ajst-3255	100	31	processing	processing	NOUN
ajst-3255	100	32	.	.	PUNCT
ajst-3255	101	1	by	by	ADP
ajst-3255	101	2	using	use	VERB
ajst-3255	101	3	multiple	multiple	ADJ
ajst-3255	101	4	orientation	orientation	NOUN
ajst-3255	101	5	information	information	NOUN
ajst-3255	101	6	,	,	PUNCT
ajst-3255	101	7	spacecrafts	spacecraft	NOUN
ajst-3255	101	8	calculate	calculate	VERB
ajst-3255	101	9	its	its	PRON
ajst-3255	101	10	position	position	NOUN
ajst-3255	101	11	and	and	CCONJ
ajst-3255	101	12	attitude	attitude	NOUN
ajst-3255	101	13	.	.	PUNCT
ajst-3255	102	1	celestial	celestial	ADJ
ajst-3255	102	2	angle	angle	NOUN
ajst-3255	102	3	measurement	measurement	NOUN
ajst-3255	102	4	navigation	navigation	NOUN
ajst-3255	102	5	is	be	AUX
ajst-3255	102	6	a	a	DET
ajst-3255	102	7	relatively	relatively	ADV
ajst-3255	102	8	mature	mature	ADJ
ajst-3255	102	9	navigation	navigation	NOUN
ajst-3255	102	10	method	method	NOUN
ajst-3255	102	11	at	at	ADP
ajst-3255	102	12	present[25	present[25	NOUN
ajst-3255	102	13	]	]	PUNCT
ajst-3255	102	14	,	,	PUNCT
ajst-3255	102	15	and	and	CCONJ
ajst-3255	102	16	the	the	DET
ajst-3255	102	17	error	error	NOUN
ajst-3255	102	18	of	of	ADP
ajst-3255	102	19	it	it	PRON
ajst-3255	102	20	for	for	ADP
ajst-3255	102	21	deep	deep	ADJ
ajst-3255	102	22	space	space	NOUN
ajst-3255	102	23	navigation	navigation	NOUN
ajst-3255	102	24	is	be	AUX
ajst-3255	102	25	about	about	ADV
ajst-3255	102	26	10	10	NUM
ajst-3255	102	27	-	-	SYM
ajst-3255	102	28	250km[26][27	250km[26][27	NUM
ajst-3255	102	29	]	]	PUNCT
ajst-3255	102	30	.	.	PUNCT
ajst-3255	103	1	ranging	range	VERB
ajst-3255	103	2	navigation	navigation	NOUN
ajst-3255	103	3	mainly	mainly	ADV
ajst-3255	103	4	refers	refer	VERB
ajst-3255	103	5	to	to	ADP
ajst-3255	103	6	x	x	ADJ
ajst-3255	103	7	-	-	NOUN
ajst-3255	103	8	ray	ray	NOUN
ajst-3255	103	9	pulsar	pulsar	PROPN
ajst-3255	103	10	navigation	navigation	NOUN
ajst-3255	103	11	,	,	PUNCT
ajst-3255	103	12	which	which	PRON
ajst-3255	103	13	will	will	AUX
ajst-3255	103	14	be	be	AUX
ajst-3255	103	15	introduced	introduce	VERB
ajst-3255	103	16	separately	separately	ADV
ajst-3255	103	17	in	in	ADP
ajst-3255	103	18	the	the	DET
ajst-3255	103	19	following	follow	VERB
ajst-3255	103	20	paper	paper	NOUN
ajst-3255	103	21	.	.	PUNCT
ajst-3255	104	1	velocity	velocity	NOUN
ajst-3255	104	2	measurement	measurement	PROPN
ajst-3255	104	3	navigation	navigation	NOUN
ajst-3255	104	4	obtains	obtain	VERB
ajst-3255	104	5	the	the	DET
ajst-3255	104	6	velocity	velocity	NOUN
ajst-3255	104	7	vector	vector	NOUN
ajst-3255	104	8	of	of	ADP
ajst-3255	104	9	the	the	DET
ajst-3255	104	10	detector	detector	NOUN
ajst-3255	104	11	relative	relative	ADJ
ajst-3255	104	12	to	to	ADP
ajst-3255	104	13	the	the	DET
ajst-3255	104	14	astronomical	astronomical	ADJ
ajst-3255	104	15	target	target	NOUN
ajst-3255	104	16	by	by	ADP
ajst-3255	104	17	observing	observe	VERB
ajst-3255	104	18	the	the	DET
ajst-3255	104	19	spectral	spectral	ADJ
ajst-3255	104	20	frequency	frequency	NOUN
ajst-3255	104	21	shift	shift	NOUN
ajst-3255	104	22	caused	cause	VERB
ajst-3255	104	23	by	by	ADP
ajst-3255	104	24	the	the	DET
ajst-3255	104	25	motion	motion	NOUN
ajst-3255	104	26	of	of	ADP
ajst-3255	104	27	the	the	DET
ajst-3255	104	28	detector	detector	NOUN
ajst-3255	104	29	relative	relative	ADJ
ajst-3255	104	30	to	to	ADP
ajst-3255	104	31	the	the	DET
ajst-3255	104	32	astronomical	astronomical	ADJ
ajst-3255	104	33	target	target	NOUN
ajst-3255	104	34	.	.	PUNCT
ajst-3255	105	1	2.3.1	2.3.1	NUM
ajst-3255	105	2	.	.	PUNCT
ajst-3255	106	1	some	some	DET
ajst-3255	106	2	applications	application	NOUN
ajst-3255	106	3	,	,	PUNCT
ajst-3255	106	4	problems	problem	NOUN
ajst-3255	106	5	and	and	CCONJ
ajst-3255	106	6	research	research	NOUN
ajst-3255	106	7	interests	interest	NOUN
ajst-3255	106	8	of	of	ADP
ajst-3255	106	9	celestial	celestial	ADJ
ajst-3255	106	10	navigation	navigation	NOUN
ajst-3255	106	11	since	since	SCONJ
ajst-3255	106	12	the	the	DET
ajst-3255	106	13	1980s	1980	NOUN
ajst-3255	106	14	,	,	PUNCT
ajst-3255	106	15	more	more	ADJ
ajst-3255	106	16	and	and	CCONJ
ajst-3255	106	17	more	more	ADJ
ajst-3255	106	18	spacecrafts	spacecraft	NOUN
ajst-3255	106	19	have	have	AUX
ajst-3255	106	20	been	be	AUX
ajst-3255	106	21	using	use	VERB
ajst-3255	106	22	celestial	celestial	ADJ
ajst-3255	106	23	navigation	navigation	NOUN
ajst-3255	106	24	to	to	PART
ajst-3255	106	25	complete	complete	VERB
ajst-3255	106	26	their	their	PRON
ajst-3255	106	27	tasks	task	NOUN
ajst-3255	106	28	,	,	PUNCT
ajst-3255	106	29	and	and	CCONJ
ajst-3255	106	30	the	the	DET
ajst-3255	106	31	relevant	relevant	ADJ
ajst-3255	106	32	navigation	navigation	NOUN
ajst-3255	106	33	methods	method	NOUN
ajst-3255	106	34	have	have	AUX
ajst-3255	106	35	also	also	ADV
ajst-3255	106	36	been	be	AUX
ajst-3255	106	37	improved	improve	VERB
ajst-3255	106	38	.	.	PUNCT
ajst-3255	107	1	the	the	DET
ajst-3255	107	2	deep	deep	ADJ
ajst-3255	107	3	space	space	NOUN
ajst-3255	107	4	1	1	NUM
ajst-3255	107	5	launched	launch	VERB
ajst-3255	107	6	by	by	ADP
ajst-3255	107	7	nasa	nasa	PROPN
ajst-3255	107	8	in	in	ADP
ajst-3255	107	9	1998	1998	NUM
ajst-3255	107	10	completed	complete	VERB
ajst-3255	107	11	its	its	PRON
ajst-3255	107	12	autonomous	autonomous	ADJ
ajst-3255	107	13	navigation	navigation	NOUN
ajst-3255	107	14	in	in	ADP
ajst-3255	107	15	the	the	DET
ajst-3255	107	16	cruise	cruise	NOUN
ajst-3255	107	17	phase	phase	NOUN
ajst-3255	107	18	only	only	ADV
ajst-3255	107	19	by	by	ADP
ajst-3255	107	20	means	mean	NOUN
ajst-3255	107	21	of	of	ADP
ajst-3255	107	22	celestial	celestial	ADJ
ajst-3255	107	23	angle	angle	NOUN
ajst-3255	107	24	measurement	measurement	NOUN
ajst-3255	107	25	navigation	navigation	NOUN
ajst-3255	107	26	.	.	PUNCT
ajst-3255	108	1	the	the	DET
ajst-3255	108	2	surveyor	surveyor	NOUN
ajst-3255	108	3	probe	probe	NOUN
ajst-3255	108	4	launched	launch	VERB
ajst-3255	108	5	in	in	ADP
ajst-3255	108	6	2005	2005	NUM
ajst-3255	108	7	also	also	ADV
ajst-3255	108	8	used	use	VERB
ajst-3255	108	9	celestial	celestial	ADJ
ajst-3255	108	10	navigation	navigation	NOUN
ajst-3255	108	11	methods	method	NOUN
ajst-3255	108	12	.	.	PUNCT
ajst-3255	109	1	celestial	celestial	ADJ
ajst-3255	109	2	angle	angle	NOUN
ajst-3255	109	3	measurement	measurement	NOUN
ajst-3255	109	4	navigation	navigation	NOUN
ajst-3255	109	5	has	have	AUX
ajst-3255	109	6	been	be	AUX
ajst-3255	109	7	applied	apply	VERB
ajst-3255	109	8	in	in	ADP
ajst-3255	109	9	many	many	ADJ
ajst-3255	109	10	deep	deep	ADJ
ajst-3255	109	11	space	space	NOUN
ajst-3255	109	12	exploration	exploration	NOUN
ajst-3255	109	13	missions	mission	NOUN
ajst-3255	109	14	,	,	PUNCT
ajst-3255	109	15	but	but	CCONJ
ajst-3255	109	16	its	its	PRON
ajst-3255	109	17	accuracy	accuracy	NOUN
ajst-3255	109	18	is	be	AUX
ajst-3255	109	19	affected	affect	VERB
ajst-3255	109	20	by	by	ADP
ajst-3255	109	21	the	the	DET
ajst-3255	109	22	distance	distance	NOUN
ajst-3255	109	23	between	between	ADP
ajst-3255	109	24	spacecrafts	spacecraft	NOUN
ajst-3255	109	25	and	and	CCONJ
ajst-3255	109	26	astronomical	astronomical	ADJ
ajst-3255	109	27	targets[28	targets[28	NOUN
ajst-3255	109	28	]	]	PUNCT
ajst-3255	109	29	.	.	PUNCT
ajst-3255	110	1	in	in	ADP
ajst-3255	110	2	1960	1960	NUM
ajst-3255	110	3	,	,	PUNCT
ajst-3255	110	4	franklin	franklin	PROPN
ajst-3255	110	5	of	of	ADP
ajst-3255	110	6	the	the	DET
ajst-3255	110	7	united	united	PROPN
ajst-3255	110	8	states	states	PROPN
ajst-3255	110	9	proposed	propose	VERB
ajst-3255	110	10	the	the	DET
ajst-3255	110	11	idea	idea	NOUN
ajst-3255	110	12	of	of	ADP
ajst-3255	110	13	using	use	VERB
ajst-3255	110	14	doppler	doppler	NOUN
ajst-3255	110	15	phenomena	phenomenon	NOUN
ajst-3255	110	16	to	to	PART
ajst-3255	110	17	measure	measure	VERB
ajst-3255	110	18	the	the	DET
ajst-3255	110	19	velocity	velocity	NOUN
ajst-3255	110	20	of	of	ADP
ajst-3255	110	21	spacecrafts	spacecraft	NOUN
ajst-3255	110	22	.	.	PUNCT
ajst-3255	111	1	he	he	PRON
ajst-3255	111	2	believed	believe	VERB
ajst-3255	111	3	that	that	SCONJ
ajst-3255	111	4	the	the	DET
ajst-3255	111	5	solar	solar	ADJ
ajst-3255	111	6	spectrum	spectrum	NOUN
ajst-3255	111	7	could	could	AUX
ajst-3255	111	8	be	be	AUX
ajst-3255	111	9	used	use	VERB
ajst-3255	111	10	as	as	ADP
ajst-3255	111	11	an	an	DET
ajst-3255	111	12	information	information	NOUN
ajst-3255	111	13	source	source	NOUN
ajst-3255	111	14	for	for	ADP
ajst-3255	111	15	celestial	celestial	ADJ
ajst-3255	111	16	velocity	velocity	NOUN
ajst-3255	111	17	measurement	measurement	NOUN
ajst-3255	111	18	navigation[29	navigation[29	NOUN
ajst-3255	111	19	]	]	X
ajst-3255	111	20	.	.	PUNCT
ajst-3255	112	1	since	since	SCONJ
ajst-3255	112	2	then	then	ADV
ajst-3255	112	3	,	,	PUNCT
ajst-3255	112	4	the	the	DET
ajst-3255	112	5	theory	theory	NOUN
ajst-3255	112	6	of	of	ADP
ajst-3255	112	7	celestial	celestial	ADJ
ajst-3255	112	8	velocity	velocity	NOUN
ajst-3255	112	9	navigation	navigation	NOUN
ajst-3255	112	10	has	have	AUX
ajst-3255	112	11	been	be	AUX
ajst-3255	112	12	developing	develop	VERB
ajst-3255	112	13	at	at	ADP
ajst-3255	112	14	home	home	NOUN
ajst-3255	112	15	and	and	CCONJ
ajst-3255	112	16	abroad	abroad	ADV
ajst-3255	112	17	,	,	PUNCT
ajst-3255	112	18	but	but	CCONJ
ajst-3255	112	19	until	until	ADP
ajst-3255	112	20	now	now	ADV
ajst-3255	112	21	,	,	PUNCT
ajst-3255	112	22	there	there	PRON
ajst-3255	112	23	is	be	VERB
ajst-3255	112	24	still	still	ADV
ajst-3255	112	25	a	a	DET
ajst-3255	112	26	lack	lack	NOUN
ajst-3255	112	27	of	of	ADP
ajst-3255	112	28	a	a	DET
ajst-3255	112	29	corresponding	correspond	VERB
ajst-3255	112	30	complete	complete	ADJ
ajst-3255	112	31	engineering	engineering	NOUN
ajst-3255	112	32	system	system	NOUN
ajst-3255	112	33	.	.	PUNCT
ajst-3255	113	1	and	and	CCONJ
ajst-3255	113	2	the	the	DET
ajst-3255	113	3	celestial	celestial	ADJ
ajst-3255	113	4	velocity	velocity	NOUN
ajst-3255	113	5	navigation	navigation	NOUN
ajst-3255	113	6	is	be	AUX
ajst-3255	113	7	still	still	ADV
ajst-3255	113	8	in	in	ADP
ajst-3255	113	9	the	the	DET
ajst-3255	113	10	engineering	engineering	NOUN
ajst-3255	113	11	verification	verification	NOUN
ajst-3255	113	12	stage	stage	NOUN
ajst-3255	113	13	.	.	PUNCT
ajst-3255	114	1	in	in	ADP
ajst-3255	114	2	addition	addition	NOUN
ajst-3255	114	3	,	,	PUNCT
ajst-3255	114	4	many	many	ADJ
ajst-3255	114	5	countries	country	NOUN
ajst-3255	114	6	in	in	ADP
ajst-3255	114	7	the	the	DET
ajst-3255	114	8	world	world	NOUN
ajst-3255	114	9	have	have	AUX
ajst-3255	114	10	made	make	VERB
ajst-3255	114	11	a	a	DET
ajst-3255	114	12	lot	lot	NOUN
ajst-3255	114	13	of	of	ADP
ajst-3255	114	14	research	research	NOUN
ajst-3255	114	15	on	on	ADP
ajst-3255	114	16	the	the	DET
ajst-3255	114	17	star	star	NOUN
ajst-3255	114	18	sensors	sensor	NOUN
ajst-3255	114	19	,	,	PUNCT
ajst-3255	114	20	which	which	PRON
ajst-3255	114	21	is	be	AUX
ajst-3255	114	22	the	the	DET
ajst-3255	114	23	core	core	ADJ
ajst-3255	114	24	device	device	NOUN
ajst-3255	114	25	of	of	ADP
ajst-3255	114	26	celestial	celestial	ADJ
ajst-3255	114	27	navigation	navigation	NOUN
ajst-3255	114	28	.	.	PUNCT
ajst-3255	115	1	ball	ball	NOUN
ajst-3255	115	2	aerospace	aerospace	NOUN
ajst-3255	115	3	company	company	NOUN
ajst-3255	115	4	of	of	ADP
ajst-3255	115	5	the	the	DET
ajst-3255	115	6	united	united	PROPN
ajst-3255	115	7	states	states	PROPN
ajst-3255	115	8	has	have	AUX
ajst-3255	115	9	developed	develop	VERB
ajst-3255	115	10	the	the	DET
ajst-3255	115	11	ct-633	ct-633	PROPN
ajst-3255	115	12	star	star	NOUN
ajst-3255	115	13	tracker	tracker	PROPN
ajst-3255	115	14	,	,	PUNCT
ajst-3255	115	15	which	which	PRON
ajst-3255	115	16	can	can	AUX
ajst-3255	115	17	be	be	AUX
ajst-3255	115	18	used	use	VERB
ajst-3255	115	19	as	as	ADP
ajst-3255	115	20	an	an	DET
ajst-3255	115	21	attitude	attitude	NOUN
ajst-3255	115	22	sensor	sensor	NOUN
ajst-3255	115	23	and	and	CCONJ
ajst-3255	115	24	can	can	AUX
ajst-3255	115	25	be	be	AUX
ajst-3255	115	26	applied	apply	VERB
ajst-3255	115	27	to	to	ADP
ajst-3255	115	28	many	many	ADJ
ajst-3255	115	29	occasions	occasion	NOUN
ajst-3255	115	30	,	,	PUNCT
ajst-3255	115	31	including	include	VERB
ajst-3255	115	32	space	space	NOUN
ajst-3255	115	33	stations	station	NOUN
ajst-3255	115	34	,	,	PUNCT
ajst-3255	115	35	earth	earth	NOUN
ajst-3255	115	36	orbit	orbit	NOUN
ajst-3255	115	37	satellites	satellite	NOUN
ajst-3255	115	38	,	,	PUNCT
ajst-3255	115	39	etc	etc	X
ajst-3255	115	40	.	.	X
ajst-3255	115	41	astro	astro	PROPN
ajst-3255	115	42	series	series	PROPN
ajst-3255	115	43	star	star	PROPN
ajst-3255	115	44	trackers	tracker	NOUN
ajst-3255	115	45	developed	develop	VERB
ajst-3255	115	46	by	by	ADP
ajst-3255	115	47	germany	germany	PROPN
ajst-3255	115	48	jena	jena	PROPN
ajst-3255	115	49	company	company	PROPN
ajst-3255	115	50	were	be	AUX
ajst-3255	115	51	successfully	successfully	ADV
ajst-3255	115	52	applied	apply	VERB
ajst-3255	115	53	to	to	ADP
ajst-3255	115	54	mir	mir	PROPN
ajst-3255	115	55	space	space	NOUN
ajst-3255	115	56	station[30	station[30	PROPN
ajst-3255	115	57	]	]	PUNCT
ajst-3255	115	58	.	.	PUNCT
ajst-3255	116	1	the	the	DET
ajst-3255	116	2	research	research	NOUN
ajst-3255	116	3	and	and	CCONJ
ajst-3255	116	4	development	development	NOUN
ajst-3255	116	5	of	of	ADP
ajst-3255	116	6	star	star	NOUN
ajst-3255	116	7	sensors	sensor	NOUN
ajst-3255	116	8	in	in	ADP
ajst-3255	116	9	china	china	PROPN
ajst-3255	116	10	started	start	VERB
ajst-3255	116	11	in	in	ADP
ajst-3255	116	12	the	the	DET
ajst-3255	116	13	1980s	1980s	NUM
ajst-3255	116	14	,	,	PUNCT
ajst-3255	116	15	a	a	DET
ajst-3255	116	16	little	little	ADJ
ajst-3255	116	17	later	later	ADV
ajst-3255	116	18	than	than	ADP
ajst-3255	116	19	that	that	PRON
ajst-3255	116	20	in	in	ADP
ajst-3255	116	21	foreign	foreign	ADJ
ajst-3255	116	22	countries	country	NOUN
ajst-3255	116	23	.	.	PUNCT
ajst-3255	117	1	however	however	ADV
ajst-3255	117	2	,	,	PUNCT
ajst-3255	117	3	after	after	ADP
ajst-3255	117	4	decades	decade	NOUN
ajst-3255	117	5	of	of	ADP
ajst-3255	117	6	research	research	NOUN
ajst-3255	117	7	,	,	PUNCT
ajst-3255	117	8	related	relate	VERB
ajst-3255	117	9	technologies	technology	NOUN
ajst-3255	117	10	have	have	AUX
ajst-3255	117	11	also	also	ADV
ajst-3255	117	12	achieved	achieve	VERB
ajst-3255	117	13	certain	certain	ADJ
ajst-3255	117	14	progress	progress	NOUN
ajst-3255	117	15	to	to	ADP
ajst-3255	117	16	some	some	DET
ajst-3255	117	17	extent	extent	NOUN
ajst-3255	117	18	.	.	PUNCT
ajst-3255	118	1	at	at	ADP
ajst-3255	118	2	present	present	ADJ
ajst-3255	118	3	,	,	PUNCT
ajst-3255	118	4	there	there	PRON
ajst-3255	118	5	are	be	VERB
ajst-3255	118	6	still	still	ADV
ajst-3255	118	7	some	some	DET
ajst-3255	118	8	technical	technical	ADJ
ajst-3255	118	9	and	and	CCONJ
ajst-3255	118	10	theoretical	theoretical	ADJ
ajst-3255	118	11	problems	problem	NOUN
ajst-3255	118	12	as	as	ADV
ajst-3255	118	13	well	well	ADV
ajst-3255	118	14	as	as	ADP
ajst-3255	118	15	engineering	engineering	NOUN
ajst-3255	118	16	practice	practice	NOUN
ajst-3255	118	17	problems	problem	NOUN
ajst-3255	118	18	in	in	ADP
ajst-3255	118	19	celestial	celestial	ADJ
ajst-3255	118	20	navigation	navigation	NOUN
ajst-3255	118	21	in	in	ADP
ajst-3255	118	22	the	the	DET
ajst-3255	118	23	aerospace	aerospace	NOUN
ajst-3255	118	24	field	field	NOUN
ajst-3255	118	25	.	.	PUNCT
ajst-3255	119	1	for	for	ADP
ajst-3255	119	2	example	example	NOUN
ajst-3255	119	3	:	:	PUNCT
ajst-3255	119	4	space	space	NOUN
ajst-3255	119	5	-	-	PUNCT
ajst-3255	119	6	time	time	NOUN
ajst-3255	119	7	issue	issue	NOUN
ajst-3255	119	8	.	.	PUNCT
ajst-3255	120	1	that	that	PRON
ajst-3255	120	2	is	be	AUX
ajst-3255	120	3	the	the	DET
ajst-3255	120	4	time	time	NOUN
ajst-3255	120	5	used	use	VERB
ajst-3255	120	6	by	by	ADP
ajst-3255	120	7	the	the	DET
ajst-3255	120	8	atomic	atomic	ADJ
ajst-3255	120	9	clock	clock	NOUN
ajst-3255	120	10	in	in	ADP
ajst-3255	120	11	deep	deep	ADJ
ajst-3255	120	12	space	space	NOUN
ajst-3255	120	13	spacecraft	spacecraft	NOUN
ajst-3255	120	14	is	be	AUX
ajst-3255	120	15	different	different	ADJ
ajst-3255	120	16	from	from	ADP
ajst-3255	120	17	the	the	DET
ajst-3255	120	18	time	time	NOUN
ajst-3255	120	19	used	use	VERB
ajst-3255	120	20	for	for	ADP
ajst-3255	120	21	coordinated	coordinated	ADJ
ajst-3255	120	22	universal	universal	ADJ
ajst-3255	120	23	time	time	NOUN
ajst-3255	120	24	and	and	CCONJ
ajst-3255	120	25	planetary	planetary	ADJ
ajst-3255	120	26	calendar	calendar	NOUN
ajst-3255	120	27	.	.	PUNCT
ajst-3255	121	1	the	the	DET
ajst-3255	121	2	error	error	NOUN
ajst-3255	121	3	caused	cause	VERB
ajst-3255	121	4	by	by	ADP
ajst-3255	121	5	conversion	conversion	NOUN
ajst-3255	121	6	between	between	ADP
ajst-3255	121	7	different	different	ADJ
ajst-3255	121	8	spatio	spatio	PROPN
ajst-3255	121	9	-	-	PUNCT
ajst-3255	121	10	temporal	temporal	ADJ
ajst-3255	121	11	datum	datum	NOUN
ajst-3255	121	12	will	will	AUX
ajst-3255	121	13	have	have	VERB
ajst-3255	121	14	a	a	DET
ajst-3255	121	15	greater	great	ADJ
ajst-3255	121	16	impact	impact	NOUN
ajst-3255	121	17	on	on	ADP
ajst-3255	121	18	high	high	ADJ
ajst-3255	121	19	-	-	PUNCT
ajst-3255	121	20	speed	speed	NOUN
ajst-3255	121	21	deep	deep	ADJ
ajst-3255	121	22	space	space	NOUN
ajst-3255	121	23	spacecraft[25	spacecraft[25	NOUN
ajst-3255	121	24	]	]	X
ajst-3255	121	25	.	.	PUNCT
ajst-3255	122	1	3	3	X
ajst-3255	122	2	.	.	X
ajst-3255	122	3	some	some	DET
ajst-3255	122	4	other	other	ADJ
ajst-3255	122	5	navigation	navigation	NOUN
ajst-3255	122	6	methods	method	NOUN
ajst-3255	122	7	3.1	3.1	NUM
ajst-3255	122	8	.	.	PUNCT
ajst-3255	123	1	x	x	X
ajst-3255	123	2	-	-	PUNCT
ajst-3255	123	3	ray	ray	NOUN
ajst-3255	123	4	pulsar	pulsar	NOUN
ajst-3255	123	5	-	-	PUNCT
ajst-3255	123	6	based	base	VERB
ajst-3255	123	7	navigation	navigation	NOUN
ajst-3255	123	8	x	x	PROPN
ajst-3255	123	9	-	-	NOUN
ajst-3255	123	10	ray	ray	NOUN
ajst-3255	123	11	pulsar	pulsar	NOUN
ajst-3255	123	12	-	-	PUNCT
ajst-3255	123	13	based	base	VERB
ajst-3255	123	14	navigation	navigation	NOUN
ajst-3255	123	15	is	be	AUX
ajst-3255	123	16	a	a	DET
ajst-3255	123	17	kind	kind	NOUN
ajst-3255	123	18	of	of	ADP
ajst-3255	123	19	celestial	celestial	ADJ
ajst-3255	123	20	ranging	range	VERB
ajst-3255	123	21	navigation	navigation	NOUN
ajst-3255	123	22	.	.	PUNCT
ajst-3255	124	1	the	the	DET
ajst-3255	124	2	principle	principle	NOUN
ajst-3255	124	3	of	of	ADP
ajst-3255	124	4	x	x	NOUN
ajst-3255	124	5	-	-	NOUN
ajst-3255	124	6	ray	ray	NOUN
ajst-3255	124	7	pulsar	pulsar	NOUN
ajst-3255	124	8	-	-	PUNCT
ajst-3255	124	9	based	base	VERB
ajst-3255	124	10	navigation	navigation	NOUN
ajst-3255	124	11	is	be	AUX
ajst-3255	124	12	to	to	PART
ajst-3255	124	13	measure	measure	VERB
ajst-3255	124	14	the	the	DET
ajst-3255	124	15	time	time	NOUN
ajst-3255	124	16	when	when	SCONJ
ajst-3255	124	17	the	the	DET
ajst-3255	124	18	detector	detector	NOUN
ajst-3255	124	19	receives	receive	VERB
ajst-3255	124	20	the	the	DET
ajst-3255	124	21	x	x	ADJ
ajst-3255	124	22	-	-	NOUN
ajst-3255	124	23	ray	ray	NOUN
ajst-3255	124	24	photon	photon	NOUN
ajst-3255	124	25	of	of	ADP
ajst-3255	124	26	the	the	DET
ajst-3255	124	27	pulsar	pulsar	NOUN
ajst-3255	124	28	,	,	PUNCT
ajst-3255	124	29	and	and	CCONJ
ajst-3255	124	30	the	the	DET
ajst-3255	124	31	time	time	NOUN
ajst-3255	124	32	when	when	SCONJ
ajst-3255	124	33	the	the	DET
ajst-3255	124	34	pulse	pulse	NOUN
ajst-3255	124	35	arrives	arrive	VERB
ajst-3255	124	36	at	at	ADP
ajst-3255	124	37	the	the	DET
ajst-3255	124	38	reference	reference	NOUN
ajst-3255	124	39	point	point	NOUN
ajst-3255	124	40	(	(	PUNCT
ajst-3255	124	41	usually	usually	ADV
ajst-3255	124	42	the	the	DET
ajst-3255	124	43	center	center	NOUN
ajst-3255	124	44	of	of	ADP
ajst-3255	124	45	mass	mass	NOUN
ajst-3255	124	46	of	of	ADP
ajst-3255	124	47	the	the	DET
ajst-3255	124	48	solar	solar	ADJ
ajst-3255	124	49	system	system	NOUN
ajst-3255	124	50	)	)	PUNCT
ajst-3255	124	51	.	.	PUNCT
ajst-3255	125	1	the	the	DET
ajst-3255	125	2	difference	difference	NOUN
ajst-3255	125	3	between	between	ADP
ajst-3255	125	4	the	the	DET
ajst-3255	125	5	time	time	NOUN
ajst-3255	125	6	data	datum	NOUN
ajst-3255	125	7	multiple	multiple	NOUN
ajst-3255	125	8	the	the	DET
ajst-3255	125	9	speed	speed	NOUN
ajst-3255	125	10	of	of	ADP
ajst-3255	125	11	light	light	NOUN
ajst-3255	125	12	,	,	PUNCT
ajst-3255	125	13	that	that	PRON
ajst-3255	125	14	is	be	AUX
ajst-3255	125	15	the	the	DET
ajst-3255	125	16	projection	projection	NOUN
ajst-3255	125	17	of	of	ADP
ajst-3255	125	18	the	the	DET
ajst-3255	125	19	distance	distance	NOUN
ajst-3255	125	20	from	from	ADP
ajst-3255	125	21	the	the	DET
ajst-3255	125	22	spacecraft	spacecraft	NOUN
ajst-3255	125	23	to	to	ADP
ajst-3255	125	24	the	the	DET
ajst-3255	125	25	reference	reference	NOUN
ajst-3255	125	26	point	point	NOUN
ajst-3255	125	27	on	on	ADP
ajst-3255	125	28	the	the	DET
ajst-3255	125	29	line	line	NOUN
ajst-3255	125	30	between	between	ADP
ajst-3255	125	31	the	the	DET
ajst-3255	125	32	pulsar	pulsar	NOUN
ajst-3255	125	33	and	and	CCONJ
ajst-3255	125	34	the	the	DET
ajst-3255	125	35	reference	reference	NOUN
ajst-3255	125	36	point	point	NOUN
ajst-3255	125	37	.	.	PUNCT
ajst-3255	126	1	figure	figure	NOUN
ajst-3255	126	2	4	4	NUM
ajst-3255	126	3	.	.	PUNCT
ajst-3255	127	1	x	x	X
ajst-3255	127	2	-	-	NOUN
ajst-3255	127	3	ray	ray	PROPN
ajst-3255	127	4	pulsar	pulsar	PROPN
ajst-3255	127	5	radiation[31	radiation[31	PROPN
ajst-3255	127	6	]	]	PUNCT
ajst-3255	127	7	in	in	ADP
ajst-3255	127	8	1974	1974	NUM
ajst-3255	127	9	,	,	PUNCT
ajst-3255	127	10	the	the	DET
ajst-3255	127	11	the	the	DET
ajst-3255	127	12	jet	jet	NOUN
ajst-3255	127	13	propulsion	propulsion	NOUN
ajst-3255	127	14	laboratory	laboratory	NOUN
ajst-3255	127	15	(	(	PUNCT
ajst-3255	127	16	jpl	jpl	PROPN
ajst-3255	127	17	)	)	PUNCT
ajst-3255	127	18	first	first	ADV
ajst-3255	127	19	proposed	propose	VERB
ajst-3255	127	20	an	an	DET
ajst-3255	127	21	autonomous	autonomous	ADJ
ajst-3255	127	22	orbit	orbit	NOUN
ajst-3255	127	23	determination	determination	NOUN
ajst-3255	127	24	method	method	NOUN
ajst-3255	127	25	based	base	VERB
ajst-3255	127	26	on	on	ADP
ajst-3255	127	27	radio	radio	NOUN
ajst-3255	127	28	pulsars	pulsar	NOUN
ajst-3255	127	29	,	,	PUNCT
ajst-3255	127	30	which	which	PRON
ajst-3255	127	31	treated	treat	VERB
ajst-3255	127	32	each	each	DET
ajst-3255	127	33	pulsar	pulsar	NOUN
ajst-3255	127	34	as	as	ADP
ajst-3255	127	35	a	a	DET
ajst-3255	127	36	beacon	beacon	NOUN
ajst-3255	127	37	.	.	PUNCT
ajst-3255	128	1	in	in	ADP
ajst-3255	128	2	1981	1981	NUM
ajst-3255	128	3	,	,	PUNCT
ajst-3255	128	4	the	the	DET
ajst-3255	128	5	american	american	PROPN
ajst-3255	128	6	institute	institute	PROPN
ajst-3255	128	7	of	of	ADP
ajst-3255	128	8	communication	communication	NOUN
ajst-3255	128	9	systems	system	NOUN
ajst-3255	128	10	proposed	propose	VERB
ajst-3255	128	11	to	to	PART
ajst-3255	128	12	use	use	VERB
ajst-3255	128	13	the	the	DET
ajst-3255	128	14	x	x	NOUN
ajst-3255	128	15	-	-	NOUN
ajst-3255	128	16	ray	ray	NOUN
ajst-3255	128	17	pulse	pulse	NOUN
ajst-3255	128	18	signal	signal	NOUN
ajst-3255	128	19	instead	instead	ADV
ajst-3255	128	20	of	of	ADP
ajst-3255	128	21	the	the	DET
ajst-3255	128	22	radio	radio	NOUN
ajst-3255	128	23	pulse	pulse	NOUN
ajst-3255	128	24	signal	signal	NOUN
ajst-3255	128	25	as	as	ADP
ajst-3255	128	26	the	the	DET
ajst-3255	128	27	observation	observation	NOUN
ajst-3255	128	28	measurement	measurement	NOUN
ajst-3255	128	29	,	,	PUNCT
ajst-3255	128	30	because	because	SCONJ
ajst-3255	128	31	the	the	DET
ajst-3255	128	32	xray	xray	PROPN
ajst-3255	128	33	pulse	pulse	NOUN
ajst-3255	128	34	concentrated	concentrate	VERB
ajst-3255	128	35	most	most	ADJ
ajst-3255	128	36	of	of	ADP
ajst-3255	128	37	the	the	DET
ajst-3255	128	38	energy	energy	NOUN
ajst-3255	128	39	of	of	ADP
ajst-3255	128	40	the	the	DET
ajst-3255	128	41	pulsar[32	pulsar[32	NOUN
ajst-3255	128	42	]	]	PUNCT
ajst-3255	128	43	.	.	PUNCT
ajst-3255	129	1	70	70	NUM
ajst-3255	129	2	in	in	ADP
ajst-3255	129	3	2004	2004	NUM
ajst-3255	129	4	,	,	PUNCT
ajst-3255	129	5	the	the	DET
ajst-3255	129	6	defense	defense	NOUN
ajst-3255	129	7	advanced	advanced	ADJ
ajst-3255	129	8	research	research	NOUN
ajst-3255	129	9	projects	project	NOUN
ajst-3255	129	10	agency	agency	NOUN
ajst-3255	129	11	of	of	ADP
ajst-3255	129	12	the	the	DET
ajst-3255	129	13	us	us	PROPN
ajst-3255	129	14	proposed	propose	VERB
ajst-3255	129	15	the	the	DET
ajst-3255	129	16	autonomous	autonomous	ADJ
ajst-3255	129	17	navigation	navigation	NOUN
ajst-3255	129	18	and	and	CCONJ
ajst-3255	129	19	positioning	positioning	NOUN
ajst-3255	129	20	verification	verification	NOUN
ajst-3255	129	21	based	base	VERB
ajst-3255	129	22	on	on	ADP
ajst-3255	129	23	x	x	ADJ
ajst-3255	129	24	-	-	NOUN
ajst-3255	129	25	ray	ray	NOUN
ajst-3255	129	26	source[33	source[33	NOUN
ajst-3255	129	27	]	]	X
ajst-3255	129	28	,	,	PUNCT
ajst-3255	129	29	planing	plane	VERB
ajst-3255	129	30	to	to	PART
ajst-3255	129	31	apply	apply	VERB
ajst-3255	129	32	pulsar	pulsar	NOUN
ajst-3255	129	33	navigation	navigation	NOUN
ajst-3255	129	34	to	to	ADP
ajst-3255	129	35	the	the	DET
ajst-3255	129	36	solar	solar	ADJ
ajst-3255	129	37	system	system	NOUN
ajst-3255	129	38	.	.	PUNCT
ajst-3255	130	1	in	in	ADP
ajst-3255	130	2	addition	addition	NOUN
ajst-3255	130	3	,	,	PUNCT
ajst-3255	130	4	europe	europe	PROPN
ajst-3255	130	5	and	and	CCONJ
ajst-3255	130	6	japan	japan	PROPN
ajst-3255	130	7	have	have	AUX
ajst-3255	130	8	also	also	ADV
ajst-3255	130	9	planned	plan	VERB
ajst-3255	130	10	or	or	CCONJ
ajst-3255	130	11	carried	carry	VERB
ajst-3255	130	12	out	out	ADP
ajst-3255	130	13	relevant	relevant	ADJ
ajst-3255	130	14	theoretical	theoretical	ADJ
ajst-3255	130	15	and	and	CCONJ
ajst-3255	130	16	experimental	experimental	ADJ
ajst-3255	130	17	research	research	NOUN
ajst-3255	130	18	on	on	ADP
ajst-3255	130	19	x	x	ADJ
ajst-3255	130	20	-	-	NOUN
ajst-3255	130	21	ray	ray	NOUN
ajst-3255	130	22	pulsar	pulsar	NOUN
ajst-3255	130	23	-	-	PUNCT
ajst-3255	130	24	based	base	VERB
ajst-3255	130	25	navigation[34][35	navigation[34][35	PROPN
ajst-3255	130	26	]	]	PUNCT
ajst-3255	130	27	.	.	PUNCT
ajst-3255	131	1	for	for	ADP
ajst-3255	131	2	engineering	engineering	NOUN
ajst-3255	131	3	,	,	PUNCT
ajst-3255	131	4	in2004	in2004	NOUN
ajst-3255	131	5	,	,	PUNCT
ajst-3255	131	6	both	both	CCONJ
ajst-3255	131	7	the	the	DET
ajst-3255	131	8	european	european	PROPN
ajst-3255	131	9	space	space	PROPN
ajst-3255	131	10	agency	agency	PROPN
ajst-3255	131	11	(	(	PUNCT
ajst-3255	131	12	esa	esa	PROPN
ajst-3255	131	13	)	)	PUNCT
ajst-3255	131	14	and	and	CCONJ
ajst-3255	131	15	the	the	DET
ajst-3255	131	16	united	united	PROPN
ajst-3255	131	17	states	states	PROPN
ajst-3255	131	18	department	department	PROPN
ajst-3255	131	19	of	of	ADP
ajst-3255	131	20	defense	defense	PROPN
ajst-3255	131	21	proposed	propose	VERB
ajst-3255	131	22	the	the	DET
ajst-3255	131	23	plan	plan	NOUN
ajst-3255	131	24	for	for	ADP
ajst-3255	131	25	x	x	NOUN
ajst-3255	131	26	-	-	NOUN
ajst-3255	131	27	ray	ray	NOUN
ajst-3255	131	28	pulsarbased	pulsarbase	VERB
ajst-3255	131	29	navigation	navigation	NOUN
ajst-3255	131	30	of	of	ADP
ajst-3255	131	31	deep	deep	ADJ
ajst-3255	131	32	space	space	NOUN
ajst-3255	131	33	spacecraft	spacecraft	NOUN
ajst-3255	131	34	.	.	PUNCT
ajst-3255	132	1	in	in	ADP
ajst-3255	132	2	2007	2007	NUM
ajst-3255	132	3	,	,	PUNCT
ajst-3255	132	4	nasa	nasa	PROPN
ajst-3255	132	5	took	take	VERB
ajst-3255	132	6	over	over	ADP
ajst-3255	132	7	the	the	DET
ajst-3255	132	8	relevant	relevant	ADJ
ajst-3255	132	9	plans	plan	NOUN
ajst-3255	132	10	of	of	ADP
ajst-3255	132	11	the	the	DET
ajst-3255	132	12	u.s	u.s	PROPN
ajst-3255	132	13	.	.	PROPN
ajst-3255	132	14	department	department	PROPN
ajst-3255	132	15	of	of	ADP
ajst-3255	132	16	defense	defense	NOUN
ajst-3255	132	17	,	,	PUNCT
ajst-3255	132	18	and	and	CCONJ
ajst-3255	132	19	completed	complete	VERB
ajst-3255	132	20	the	the	DET
ajst-3255	132	21	space	space	NOUN
ajst-3255	132	22	verification	verification	NOUN
ajst-3255	132	23	of	of	ADP
ajst-3255	132	24	x	x	ADJ
ajst-3255	132	25	-	-	NOUN
ajst-3255	132	26	ray	ray	NOUN
ajst-3255	132	27	pulsar	pulsar	NOUN
ajst-3255	132	28	navigation	navigation	NOUN
ajst-3255	132	29	for	for	ADP
ajst-3255	132	30	the	the	DET
ajst-3255	132	31	first	first	ADJ
ajst-3255	132	32	time	time	NOUN
ajst-3255	132	33	in	in	ADP
ajst-3255	132	34	2017	2017	NUM
ajst-3255	132	35	.	.	PUNCT
ajst-3255	133	1	the	the	DET
ajst-3255	133	2	highest	high	ADJ
ajst-3255	133	3	positioning	positioning	NOUN
ajst-3255	133	4	accuracy	accuracy	NOUN
ajst-3255	133	5	is	be	AUX
ajst-3255	133	6	about	about	ADV
ajst-3255	133	7	4.8km[36	4.8km[36	NUM
ajst-3255	133	8	]	]	PUNCT
ajst-3255	133	9	.	.	PUNCT
ajst-3255	134	1	china	china	PROPN
ajst-3255	134	2	’s	’s	PART
ajst-3255	134	3	research	research	NOUN
ajst-3255	134	4	on	on	ADP
ajst-3255	134	5	pulsarbased	pulsarbase	VERB
ajst-3255	134	6	navigation	navigation	NOUN
ajst-3255	134	7	started	start	VERB
ajst-3255	134	8	relatively	relatively	ADV
ajst-3255	134	9	late	late	ADV
ajst-3255	134	10	.	.	PUNCT
ajst-3255	135	1	in	in	ADP
ajst-3255	135	2	2007	2007	NUM
ajst-3255	135	3	,	,	PUNCT
ajst-3255	135	4	ping	ping	PROPN
ajst-3255	135	5	shuai	shuai	PROPN
ajst-3255	135	6	studied	study	VERB
ajst-3255	135	7	the	the	DET
ajst-3255	135	8	principle	principle	NOUN
ajst-3255	135	9	,	,	PUNCT
ajst-3255	135	10	engineering	engineering	NOUN
ajst-3255	135	11	application	application	NOUN
ajst-3255	135	12	and	and	CCONJ
ajst-3255	135	13	feasibility	feasibility	NOUN
ajst-3255	135	14	of	of	ADP
ajst-3255	135	15	pulsar	pulsar	PROPN
ajst-3255	135	16	navigation[37	navigation[37	NOUN
ajst-3255	135	17	]	]	X
ajst-3255	135	18	.	.	PUNCT
ajst-3255	136	1	in	in	ADP
ajst-3255	136	2	2016	2016	NUM
ajst-3255	136	3	,	,	PUNCT
ajst-3255	136	4	the	the	DET
ajst-3255	136	5	institute	institute	NOUN
ajst-3255	136	6	of	of	ADP
ajst-3255	136	7	high	high	ADJ
ajst-3255	136	8	energy	energy	NOUN
ajst-3255	136	9	physics	physics	NOUN
ajst-3255	136	10	of	of	ADP
ajst-3255	136	11	the	the	DET
ajst-3255	136	12	chinese	chinese	PROPN
ajst-3255	136	13	academy	academy	PROPN
ajst-3255	136	14	of	of	ADP
ajst-3255	136	15	sciences	sciences	PROPN
ajst-3255	136	16	used	use	VERB
ajst-3255	136	17	the	the	DET
ajst-3255	136	18	crab	crab	NOUN
ajst-3255	136	19	pulsars	pulsar	NOUN
ajst-3255	136	20	to	to	PART
ajst-3255	136	21	determine	determine	VERB
ajst-3255	136	22	the	the	DET
ajst-3255	136	23	orbit	orbit	NOUN
ajst-3255	136	24	of	of	ADP
ajst-3255	136	25	tiangong	tiangong	NOUN
ajst-3255	136	26	2	2	NUM
ajst-3255	136	27	,	,	PUNCT
ajst-3255	136	28	with	with	ADP
ajst-3255	136	29	an	an	DET
ajst-3255	136	30	error	error	NOUN
ajst-3255	136	31	of	of	ADP
ajst-3255	136	32	about	about	ADP
ajst-3255	136	33	20km[38	20km[38	NUM
ajst-3255	136	34	]	]	PUNCT
ajst-3255	136	35	.	.	PUNCT
ajst-3255	137	1	in	in	ADP
ajst-3255	137	2	2019	2019	NUM
ajst-3255	137	3	,	,	PUNCT
ajst-3255	137	4	the	the	DET
ajst-3255	137	5	institute	institute	NOUN
ajst-3255	137	6	of	of	ADP
ajst-3255	137	7	high	high	ADJ
ajst-3255	137	8	energy	energy	NOUN
ajst-3255	137	9	physics	physics	NOUN
ajst-3255	137	10	of	of	ADP
ajst-3255	137	11	the	the	DET
ajst-3255	137	12	chinese	chinese	PROPN
ajst-3255	137	13	academy	academy	PROPN
ajst-3255	137	14	of	of	ADP
ajst-3255	137	15	sciences	sciences	PROPN
ajst-3255	137	16	used	use	VERB
ajst-3255	137	17	china	china	PROPN
ajst-3255	137	18	's	's	PART
ajst-3255	137	19	first	first	ADJ
ajst-3255	137	20	x	x	ADJ
ajst-3255	137	21	-	-	NOUN
ajst-3255	137	22	ray	ray	NOUN
ajst-3255	137	23	astronomical	astronomical	ADJ
ajst-3255	137	24	satellite	satellite	NOUN
ajst-3255	137	25	"	"	PUNCT
ajst-3255	137	26	insight	insight	NOUN
ajst-3255	137	27	"	"	PUNCT
ajst-3255	137	28	to	to	PART
ajst-3255	137	29	carry	carry	VERB
ajst-3255	137	30	out	out	ADP
ajst-3255	137	31	x	x	ADJ
ajst-3255	137	32	-	-	NOUN
ajst-3255	137	33	ray	ray	NOUN
ajst-3255	137	34	pulsar	pulsar	NOUN
ajst-3255	137	35	navigation	navigation	NOUN
ajst-3255	137	36	test	test	NOUN
ajst-3255	137	37	,	,	PUNCT
ajst-3255	137	38	with	with	ADP
ajst-3255	137	39	an	an	DET
ajst-3255	137	40	error	error	NOUN
ajst-3255	137	41	of	of	ADP
ajst-3255	137	42	about	about	ADP
ajst-3255	137	43	10km[39	10km[39	NUM
ajst-3255	137	44	]	]	PUNCT
ajst-3255	137	45	.	.	PUNCT
ajst-3255	138	1	x	x	X
ajst-3255	138	2	-	-	PUNCT
ajst-3255	138	3	ray	ray	NOUN
ajst-3255	138	4	pulsar	pulsar	NOUN
ajst-3255	138	5	-	-	PUNCT
ajst-3255	138	6	based	base	VERB
ajst-3255	138	7	navigation	navigation	NOUN
ajst-3255	138	8	has	have	VERB
ajst-3255	138	9	the	the	DET
ajst-3255	138	10	advantages	advantage	NOUN
ajst-3255	138	11	of	of	ADP
ajst-3255	138	12	strong	strong	ADJ
ajst-3255	138	13	autonomy	autonomy	NOUN
ajst-3255	138	14	,	,	PUNCT
ajst-3255	138	15	high	high	ADJ
ajst-3255	138	16	accuracy	accuracy	NOUN
ajst-3255	138	17	,	,	PUNCT
ajst-3255	138	18	stable	stable	ADJ
ajst-3255	138	19	signal	signal	NOUN
ajst-3255	138	20	source	source	NOUN
ajst-3255	138	21	,	,	PUNCT
ajst-3255	138	22	strong	strong	ADJ
ajst-3255	138	23	anti	anti	ADJ
ajst-3255	138	24	-	-	ADJ
ajst-3255	138	25	interference	interference	ADJ
ajst-3255	138	26	ability	ability	NOUN
ajst-3255	138	27	,	,	PUNCT
ajst-3255	138	28	etc	etc	X
ajst-3255	138	29	.	.	X
ajst-3255	139	1	at	at	ADP
ajst-3255	139	2	present	present	ADJ
ajst-3255	139	3	,	,	PUNCT
ajst-3255	139	4	the	the	DET
ajst-3255	139	5	research	research	NOUN
ajst-3255	139	6	on	on	ADP
ajst-3255	139	7	x	x	ADJ
ajst-3255	139	8	-	-	NOUN
ajst-3255	139	9	ray	ray	NOUN
ajst-3255	139	10	pulsar	pulsar	NOUN
ajst-3255	139	11	navigation	navigation	NOUN
ajst-3255	139	12	is	be	AUX
ajst-3255	139	13	not	not	PART
ajst-3255	139	14	mature	mature	ADJ
ajst-3255	139	15	enough	enough	ADV
ajst-3255	139	16	.	.	PUNCT
ajst-3255	140	1	future	future	ADJ
ajst-3255	140	2	research	research	NOUN
ajst-3255	140	3	interests	interest	NOUN
ajst-3255	140	4	on	on	ADP
ajst-3255	140	5	x	x	ADJ
ajst-3255	140	6	-	-	NOUN
ajst-3255	140	7	ray	ray	NOUN
ajst-3255	140	8	pulsar	pulsar	NOUN
ajst-3255	140	9	-	-	PUNCT
ajst-3255	140	10	based	base	VERB
ajst-3255	140	11	navigation	navigation	NOUN
ajst-3255	140	12	include	include	VERB
ajst-3255	140	13	:	:	PUNCT
ajst-3255	140	14	data	datum	NOUN
ajst-3255	140	15	measurement	measurement	NOUN
ajst-3255	140	16	and	and	CCONJ
ajst-3255	140	17	processing	processing	NOUN
ajst-3255	140	18	technology	technology	NOUN
ajst-3255	140	19	,	,	PUNCT
ajst-3255	140	20	error	error	NOUN
ajst-3255	140	21	correction	correction	NOUN
ajst-3255	140	22	technology	technology	NOUN
ajst-3255	140	23	,	,	PUNCT
ajst-3255	140	24	x	x	NOUN
ajst-3255	140	25	-	-	NOUN
ajst-3255	140	26	ray	ray	NOUN
ajst-3255	140	27	detector	detector	NOUN
ajst-3255	140	28	,	,	PUNCT
ajst-3255	140	29	navigation	navigation	NOUN
ajst-3255	140	30	algorithm	algorithm	NOUN
ajst-3255	140	31	,	,	PUNCT
ajst-3255	140	32	etc[37	etc[37	X
ajst-3255	140	33	]	]	X
ajst-3255	140	34	.	.	PUNCT
ajst-3255	141	1	3.2	3.2	NUM
ajst-3255	141	2	.	.	PUNCT
ajst-3255	142	1	δdor	δdor	VERB
ajst-3255	142	2	deep	deep	ADJ
ajst-3255	142	3	space	space	NOUN
ajst-3255	142	4	navigation	navigation	NOUN
ajst-3255	142	5	δdor	δdor	VERB
ajst-3255	142	6	deep	deep	ADJ
ajst-3255	142	7	space	space	NOUN
ajst-3255	142	8	navigation	navigation	NOUN
ajst-3255	142	9	and	and	CCONJ
ajst-3255	142	10	positioning	positioning	NOUN
ajst-3255	142	11	technology	technology	NOUN
ajst-3255	142	12	is	be	AUX
ajst-3255	142	13	based	base	VERB
ajst-3255	142	14	on	on	ADP
ajst-3255	142	15	vlbi	vlbi	PROPN
ajst-3255	142	16	(	(	PUNCT
ajst-3255	142	17	very	very	ADV
ajst-3255	142	18	long	long	ADJ
ajst-3255	142	19	baseline	baseline	NOUN
ajst-3255	142	20	interferometry	interferometry	NOUN
ajst-3255	142	21	)	)	PUNCT
ajst-3255	142	22	.	.	PUNCT
ajst-3255	143	1	the	the	DET
ajst-3255	143	2	accuracy	accuracy	NOUN
ajst-3255	143	3	of	of	ADP
ajst-3255	143	4	its	its	PRON
ajst-3255	143	5	angle	angle	NOUN
ajst-3255	143	6	measurement	measurement	NOUN
ajst-3255	143	7	can	can	AUX
ajst-3255	143	8	reach	reach	VERB
ajst-3255	143	9	the	the	DET
ajst-3255	143	10	class	class	NOUN
ajst-3255	143	11	of	of	ADP
ajst-3255	143	12	milliangle	milliangle	NOUN
ajst-3255	143	13	per	per	ADP
ajst-3255	143	14	meter[40	meter[40	NOUN
ajst-3255	143	15	]	]	PUNCT
ajst-3255	143	16	.	.	PUNCT
ajst-3255	144	1	the	the	DET
ajst-3255	144	2	principle	principle	NOUN
ajst-3255	144	3	of	of	ADP
ajst-3255	144	4	δdor	δdor	PROPN
ajst-3255	144	5	navigation	navigation	NOUN
ajst-3255	144	6	is	be	AUX
ajst-3255	144	7	that	that	SCONJ
ajst-3255	144	8	the	the	DET
ajst-3255	144	9	spacecraft	spacecraft	NOUN
ajst-3255	144	10	transmits	transmit	VERB
ajst-3255	144	11	signals	signal	NOUN
ajst-3255	144	12	from	from	ADP
ajst-3255	144	13	deep	deep	ADJ
ajst-3255	144	14	space	space	NOUN
ajst-3255	144	15	to	to	ADP
ajst-3255	144	16	multiple	multiple	ADJ
ajst-3255	144	17	ground	ground	NOUN
ajst-3255	144	18	stations	station	NOUN
ajst-3255	144	19	.	.	PUNCT
ajst-3255	145	1	the	the	DET
ajst-3255	145	2	ground	ground	NOUN
ajst-3255	145	3	station	station	NOUN
ajst-3255	145	4	uses	use	VERB
ajst-3255	145	5	the	the	DET
ajst-3255	145	6	radio	radio	NOUN
ajst-3255	145	7	power	power	NOUN
ajst-3255	145	8	in	in	ADP
ajst-3255	145	9	deep	deep	ADJ
ajst-3255	145	10	space	space	NOUN
ajst-3255	145	11	to	to	PART
ajst-3255	145	12	correct	correct	VERB
ajst-3255	145	13	the	the	DET
ajst-3255	145	14	errors	error	NOUN
ajst-3255	145	15	caused	cause	VERB
ajst-3255	145	16	by	by	ADP
ajst-3255	145	17	the	the	DET
ajst-3255	145	18	spacecraft	spacecraft	NOUN
ajst-3255	145	19	's	's	PART
ajst-3255	145	20	transmission	transmission	NOUN
ajst-3255	145	21	.	.	PUNCT
ajst-3255	146	1	use	use	VERB
ajst-3255	146	2	the	the	DET
ajst-3255	146	3	data	datum	NOUN
ajst-3255	146	4	from	from	ADP
ajst-3255	146	5	multiple	multiple	ADJ
ajst-3255	146	6	ground	ground	NOUN
ajst-3255	146	7	stations	station	NOUN
ajst-3255	146	8	,	,	PUNCT
ajst-3255	146	9	the	the	DET
ajst-3255	146	10	position	position	NOUN
ajst-3255	146	11	,	,	PUNCT
ajst-3255	146	12	attitude	attitude	NOUN
ajst-3255	146	13	can	can	AUX
ajst-3255	146	14	be	be	AUX
ajst-3255	146	15	calculated	calculate	VERB
ajst-3255	146	16	.	.	PUNCT
ajst-3255	147	1	figure	figure	NOUN
ajst-3255	147	2	5	5	NUM
ajst-3255	147	3	.	.	PUNCT
ajst-3255	147	4	principle	principle	NOUN
ajst-3255	147	5	of	of	ADP
ajst-3255	147	6	vibl[40	vibl[40	NOUN
ajst-3255	147	7	]	]	X
ajst-3255	147	8	nasa	nasa	PROPN
ajst-3255	147	9	first	first	ADV
ajst-3255	147	10	applied	apply	VERB
ajst-3255	147	11	δdor	δdor	NOUN
ajst-3255	147	12	technology	technology	NOUN
ajst-3255	147	13	on	on	ADP
ajst-3255	147	14	voyager	voyager	PROPN
ajst-3255	147	15	1	1	NUM
ajst-3255	147	16	after	after	ADP
ajst-3255	147	17	years	year	NOUN
ajst-3255	147	18	of	of	ADP
ajst-3255	147	19	research	research	NOUN
ajst-3255	147	20	.	.	PUNCT
ajst-3255	148	1	since	since	SCONJ
ajst-3255	148	2	then	then	ADV
ajst-3255	148	3	,	,	PUNCT
ajst-3255	148	4	hasa	hasa	PROPN
ajst-3255	148	5	has	have	AUX
ajst-3255	148	6	n’t	not	PART
ajst-3255	148	7	stopped	stop	VERB
ajst-3255	148	8	studying	study	VERB
ajst-3255	148	9	the	the	DET
ajst-3255	148	10	δdor	δdor	NOUN
ajst-3255	148	11	technology	technology	NOUN
ajst-3255	148	12	.	.	PUNCT
ajst-3255	149	1	the	the	DET
ajst-3255	149	2	european	european	PROPN
ajst-3255	149	3	space	space	PROPN
ajst-3255	149	4	agency	agency	PROPN
ajst-3255	149	5	and	and	CCONJ
ajst-3255	149	6	the	the	DET
ajst-3255	149	7	japan	japan	PROPN
ajst-3255	149	8	aerospace	aerospace	PROPN
ajst-3255	149	9	exploration	exploration	NOUN
ajst-3255	149	10	agency	agency	NOUN
ajst-3255	149	11	have	have	AUX
ajst-3255	149	12	also	also	ADV
ajst-3255	149	13	work	work	VERB
ajst-3255	149	14	on	on	ADP
ajst-3255	149	15	this	this	DET
ajst-3255	149	16	technology	technology	NOUN
ajst-3255	149	17	.	.	PUNCT
ajst-3255	150	1	the	the	DET
ajst-3255	150	2	european	european	PROPN
ajst-3255	150	3	space	space	PROPN
ajst-3255	150	4	agency	agency	PROPN
ajst-3255	150	5	used	use	VERB
ajst-3255	150	6	the	the	DET
ajst-3255	150	7	δdor	δdor	NOUN
ajst-3255	150	8	navigation	navigation	NOUN
ajst-3255	150	9	on	on	ADP
ajst-3255	150	10	the	the	DET
ajst-3255	150	11	ulysses	ulysses	PROPN
ajst-3255	150	12	detector	detector	NOUN
ajst-3255	150	13	in	in	ADP
ajst-3255	150	14	1992	1992	NUM
ajst-3255	150	15	.	.	PUNCT
ajst-3255	151	1	japan	japan	PROPN
ajst-3255	151	2	aerospace	aerospace	PROPN
ajst-3255	151	3	research	research	PROPN
ajst-3255	151	4	and	and	CCONJ
ajst-3255	151	5	development	development	NOUN
ajst-3255	151	6	agency	agency	NOUN
ajst-3255	151	7	has	have	AUX
ajst-3255	151	8	used	use	VERB
ajst-3255	151	9	δdor	δdor	NOUN
ajst-3255	151	10	navigation	navigation	NOUN
ajst-3255	151	11	on	on	ADP
ajst-3255	151	12	noiomi	noiomi	NOUN
ajst-3255	151	13	,	,	PUNCT
ajst-3255	151	14	in	in	ADP
ajst-3255	151	15	order	order	NOUN
ajst-3255	151	16	to	to	PART
ajst-3255	151	17	ensure	ensure	VERB
ajst-3255	151	18	the	the	DET
ajst-3255	151	19	successful	successful	ADJ
ajst-3255	151	20	orbit	orbit	NOUN
ajst-3255	151	21	change	change	NOUN
ajst-3255	151	22	.	.	PUNCT
ajst-3255	152	1	in	in	ADP
ajst-3255	152	2	1998	1998	NUM
ajst-3255	152	3	,	,	PUNCT
ajst-3255	152	4	the	the	DET
ajst-3255	152	5	vibl	vibl	PROPN
ajst-3255	152	6	station	station	NOUN
ajst-3255	152	7	in	in	ADP
ajst-3255	152	8	shanghai	shanghai	PROPN
ajst-3255	152	9	participated	participate	VERB
ajst-3255	152	10	successfully	successfully	ADV
ajst-3255	152	11	in	in	ADP
ajst-3255	152	12	the	the	DET
ajst-3255	152	13	differential	differential	NOUN
ajst-3255	152	14	vlbi	vlbi	PROPN
ajst-3255	152	15	positioning	positioning	NOUN
ajst-3255	152	16	observation	observation	NOUN
ajst-3255	152	17	organized	organize	VERB
ajst-3255	152	18	by	by	ADP
ajst-3255	152	19	nasa	nasa	PROPN
ajst-3255	152	20	.	.	PUNCT
ajst-3255	153	1	first	first	ADJ
ajst-3255	153	2	application	application	NOUN
ajst-3255	153	3	of	of	ADP
ajst-3255	153	4	δdor	δdor	PROPN
ajst-3255	153	5	navigation	navigation	NOUN
ajst-3255	153	6	in	in	ADP
ajst-3255	153	7	china	china	PROPN
ajst-3255	153	8	was	be	AUX
ajst-3255	153	9	in	in	ADP
ajst-3255	153	10	2004	2004	NUM
ajst-3255	153	11	to	to	PART
ajst-3255	153	12	measure	measure	VERB
ajst-3255	153	13	the	the	DET
ajst-3255	153	14	“	"	PUNCT
ajst-3255	153	15	probe	probe	NOUN
ajst-3255	153	16	1	1	NUM
ajst-3255	153	17	”	"	PUNCT
ajst-3255	153	18	satellite[40	satellite[40	NOUN
ajst-3255	153	19	]	]	PUNCT
ajst-3255	153	20	.	.	PUNCT
ajst-3255	154	1	the	the	DET
ajst-3255	154	2	vlbi	vlbi	PROPN
ajst-3255	154	3	stations	station	NOUN
ajst-3255	154	4	were	be	AUX
ajst-3255	154	5	in	in	ADP
ajst-3255	154	6	shanghai	shanghai	PROPN
ajst-3255	154	7	,	,	PUNCT
ajst-3255	154	8	urumqi	urumqi	PROPN
ajst-3255	154	9	and	and	CCONJ
ajst-3255	154	10	kunming	kunming	PROPN
ajst-3255	154	11	.	.	PUNCT
ajst-3255	155	1	the	the	DET
ajst-3255	155	2	average	average	ADJ
ajst-3255	155	3	orbit	orbit	NOUN
ajst-3255	155	4	determination	determination	NOUN
ajst-3255	155	5	error	error	NOUN
ajst-3255	155	6	was	be	AUX
ajst-3255	155	7	2	2	NUM
ajst-3255	155	8	km	km	NOUN
ajst-3255	155	9	,	,	PUNCT
ajst-3255	155	10	and	and	CCONJ
ajst-3255	155	11	the	the	DET
ajst-3255	155	12	speed	speed	NOUN
ajst-3255	155	13	error	error	NOUN
ajst-3255	155	14	was	be	AUX
ajst-3255	155	15	5cm	5cm	ADJ
ajst-3255	155	16	/	/	SYM
ajst-3255	155	17	s.	s.	PROPN
ajst-3255	155	18	in	in	ADP
ajst-3255	155	19	2007	2007	NUM
ajst-3255	155	20	,	,	PUNCT
ajst-3255	155	21	chang’e-1	chang’e-1	NOUN
ajst-3255	155	22	lunar	lunar	ADJ
ajst-3255	155	23	exploration	exploration	NOUN
ajst-3255	155	24	satellite	satellite	NOUN
ajst-3255	155	25	also	also	ADV
ajst-3255	155	26	used	use	VERB
ajst-3255	155	27	δdor	δdor	NOUN
ajst-3255	155	28	technology[40	technology[40	PROPN
ajst-3255	155	29	]	]	PUNCT
ajst-3255	155	30	.	.	PUNCT
ajst-3255	156	1	although	although	SCONJ
ajst-3255	156	2	china	china	PROPN
ajst-3255	156	3	has	have	AUX
ajst-3255	156	4	basically	basically	ADV
ajst-3255	156	5	mastered	master	VERB
ajst-3255	156	6	the	the	DET
ajst-3255	156	7	key	key	ADJ
ajst-3255	156	8	technology	technology	NOUN
ajst-3255	156	9	of	of	ADP
ajst-3255	156	10	vlbi	vlbi	PROPN
ajst-3255	156	11	.	.	PUNCT
ajst-3255	157	1	but	but	CCONJ
ajst-3255	157	2	still	still	ADV
ajst-3255	157	3	lots	lot	NOUN
ajst-3255	157	4	of	of	ADP
ajst-3255	157	5	observation	observation	NOUN
ajst-3255	157	6	and	and	CCONJ
ajst-3255	157	7	experiments	experiment	NOUN
ajst-3255	157	8	are	be	AUX
ajst-3255	157	9	needed	need	VERB
ajst-3255	157	10	for	for	ADP
ajst-3255	157	11	better	well	ADJ
ajst-3255	157	12	application	application	NOUN
ajst-3255	157	13	of	of	ADP
ajst-3255	157	14	δdor	δdor	PROPN
ajst-3255	157	15	navigation	navigation	NOUN
ajst-3255	157	16	.	.	PUNCT
ajst-3255	158	1	δdor	δdor	NOUN
ajst-3255	158	2	system	system	NOUN
ajst-3255	158	3	has	have	VERB
ajst-3255	158	4	many	many	ADJ
ajst-3255	158	5	development	development	NOUN
ajst-3255	158	6	directions	direction	NOUN
ajst-3255	158	7	,	,	PUNCT
ajst-3255	158	8	including	include	VERB
ajst-3255	158	9	spacecraft	spacecraft	NOUN
ajst-3255	158	10	transmitter	transmitter	NOUN
ajst-3255	158	11	,	,	PUNCT
ajst-3255	158	12	data	data	NOUN
ajst-3255	158	13	transmission	transmission	NOUN
ajst-3255	158	14	channel	channel	NOUN
ajst-3255	158	15	,	,	PUNCT
ajst-3255	158	16	weak	weak	ADJ
ajst-3255	158	17	signal	signal	ADJ
ajst-3255	158	18	reception	reception	NOUN
ajst-3255	158	19	,	,	PUNCT
ajst-3255	158	20	finding	find	VERB
ajst-3255	158	21	more	more	ADV
ajst-3255	158	22	suitable	suitable	ADJ
ajst-3255	158	23	pulsars	pulsar	NOUN
ajst-3255	158	24	,	,	PUNCT
ajst-3255	158	25	and	and	CCONJ
ajst-3255	158	26	related	related	ADJ
ajst-3255	158	27	algorithms	algorithm	NOUN
ajst-3255	158	28	for	for	ADP
ajst-3255	158	29	data	data	NOUN
ajst-3255	158	30	processing	processing	NOUN
ajst-3255	158	31	.	.	PUNCT
ajst-3255	159	1	table	table	NOUN
ajst-3255	159	2	1	1	NUM
ajst-3255	159	3	.	.	PUNCT
ajst-3255	159	4	comparison	comparison	NOUN
ajst-3255	159	5	of	of	ADP
ajst-3255	159	6	different	different	ADJ
ajst-3255	159	7	navigation	navigation	NOUN
ajst-3255	159	8	methods	method	NOUN
ajst-3255	159	9	navigation	navigation	NOUN
ajst-3255	159	10	methods	method	NOUN
ajst-3255	159	11	inertial	inertial	ADJ
ajst-3255	159	12	navigation	navigation	NOUN
ajst-3255	159	13	satellite	satellite	NOUN
ajst-3255	159	14	navigation	navigation	NOUN
ajst-3255	159	15	celestial	celestial	ADJ
ajst-3255	159	16	angle	angle	NOUN
ajst-3255	159	17	navigation	navigation	NOUN
ajst-3255	159	18	celestial	celestial	ADJ
ajst-3255	159	19	velocity	velocity	NOUN
ajst-3255	159	20	navigation	navigation	NOUN
ajst-3255	159	21	x	x	PROPN
ajst-3255	159	22	-	-	NOUN
ajst-3255	159	23	ray	ray	NOUN
ajst-3255	159	24	pulsarbased	pulsarbase	VERB
ajst-3255	159	25	navigation	navigation	NOUN
ajst-3255	159	26	with	with	ADP
ajst-3255	159	27	the	the	DET
ajst-3255	159	28	help	help	NOUN
ajst-3255	159	29	of	of	ADP
ajst-3255	159	30	ground	ground	NOUN
ajst-3255	159	31	station	station	NOUN
ajst-3255	159	32	(	(	PUNCT
ajst-3255	159	33	δdor	δdor	PROPN
ajst-3255	159	34	)	)	PUNCT
ajst-3255	159	35	autonomous	autonomous	ADJ
ajst-3255	159	36	navigation	navigation	NOUN
ajst-3255	160	1	yes	yes	INTJ
ajst-3255	161	1	no	no	INTJ
ajst-3255	162	1	yes	yes	INTJ
ajst-3255	163	1	yes	yes	INTJ
ajst-3255	164	1	yes	yes	INTJ
ajst-3255	164	2	no	no	DET
ajst-3255	164	3	core	core	NOUN
ajst-3255	164	4	devices	device	NOUN
ajst-3255	164	5	gyroscope	gyroscope	NOUN
ajst-3255	164	6	,	,	PUNCT
ajst-3255	164	7	accelerometer	accelerometer	NOUN
ajst-3255	164	8	satellite	satellite	NOUN
ajst-3255	164	9	,	,	PUNCT
ajst-3255	164	10	satellite	satellite	NOUN
ajst-3255	164	11	receiver	receiver	NOUN
ajst-3255	164	12	star	star	NOUN
ajst-3255	164	13	sensor	sensor	PROPN
ajst-3255	164	14	spectral	spectral	ADJ
ajst-3255	164	15	velocity	velocity	NOUN
ajst-3255	164	16	sensor	sensor	NOUN
ajst-3255	164	17	x	x	NOUN
ajst-3255	164	18	-	-	AUX
ajst-3255	164	19	ray	ray	NOUN
ajst-3255	164	20	receiver	receiver	NOUN
ajst-3255	164	21	ground	ground	NOUN
ajst-3255	164	22	station	station	NOUN
ajst-3255	164	23	receiver	receiver	NOUN
ajst-3255	164	24	measuring	measure	VERB
ajst-3255	164	25	target	target	NOUN
ajst-3255	164	26	self	self	NOUN
ajst-3255	164	27	acceleration	acceleration	NOUN
ajst-3255	164	28	,	,	PUNCT
ajst-3255	164	29	angular	angular	ADJ
ajst-3255	164	30	acceleration	acceleration	NOUN
ajst-3255	164	31	distance	distance	NOUN
ajst-3255	164	32	from	from	ADP
ajst-3255	164	33	spacecraft	spacecraft	NOUN
ajst-3255	164	34	to	to	ADP
ajst-3255	164	35	satellite	satellite	NOUN
ajst-3255	164	36	angular	angular	NOUN
ajst-3255	164	37	between	between	ADP
ajst-3255	164	38	spacecraft	spacecraft	NOUN
ajst-3255	164	39	and	and	CCONJ
ajst-3255	164	40	target	target	VERB
ajst-3255	164	41	spectral	spectral	ADJ
ajst-3255	164	42	frequency	frequency	NOUN
ajst-3255	164	43	shift	shift	NOUN
ajst-3255	164	44	pulse	pulse	NOUN
ajst-3255	164	45	arrival	arrival	NOUN
ajst-3255	164	46	time	time	NOUN
ajst-3255	164	47	time	time	NOUN
ajst-3255	164	48	difference	difference	NOUN
ajst-3255	164	49	between	between	ADP
ajst-3255	164	50	ground	ground	NOUN
ajst-3255	164	51	stations	station	NOUN
ajst-3255	164	52	received	receive	VERB
ajst-3255	164	53	principle	principle	ADJ
ajst-3255	164	54	integration	integration	NOUN
ajst-3255	164	55	of	of	ADP
ajst-3255	164	56	acceleration	acceleration	NOUN
ajst-3255	164	57	side	side	NOUN
ajst-3255	164	58	-	-	PUNCT
ajst-3255	164	59	surveying	survey	VERB
ajst-3255	164	60	intersection	intersection	NOUN
ajst-3255	164	61	positioning	positioning	NOUN
ajst-3255	164	62	geometric	geometric	ADJ
ajst-3255	164	63	calculate	calculate	NOUN
ajst-3255	164	64	doppler	doppler	NOUN
ajst-3255	164	65	shift	shift	NOUN
ajst-3255	164	66	constancy	constancy	NOUN
ajst-3255	164	67	of	of	ADP
ajst-3255	164	68	light	light	ADJ
ajst-3255	164	69	velocity	velocity	NOUN
ajst-3255	164	70	vibl	vibl	PROPN
ajst-3255	164	71	properties	property	NOUN
ajst-3255	164	72	highest	high	ADJ
ajst-3255	164	73	short	short	ADJ
ajst-3255	164	74	-	-	PUNCT
ajst-3255	164	75	term	term	NOUN
ajst-3255	164	76	accuracy	accuracy	NOUN
ajst-3255	164	77	;	;	PUNCT
ajst-3255	164	78	low	low	ADJ
ajst-3255	164	79	long	long	ADJ
ajst-3255	164	80	-	-	PUNCT
ajst-3255	164	81	term	term	NOUN
ajst-3255	164	82	accuracy	accuracy	NOUN
ajst-3255	164	83	;	;	PUNCT
ajst-3255	164	84	mature	mature	ADJ
ajst-3255	164	85	;	;	PUNCT
ajst-3255	164	86	high	high	ADJ
ajst-3255	164	87	data	data	NOUN
ajst-3255	164	88	update	update	NOUN
ajst-3255	164	89	rate	rate	NOUN
ajst-3255	164	90	high	high	ADJ
ajst-3255	164	91	accuracy	accuracy	NOUN
ajst-3255	164	92	;	;	PUNCT
ajst-3255	164	93	mature	mature	VERB
ajst-3255	164	94	for	for	ADP
ajst-3255	164	95	middle	middle	ADJ
ajst-3255	164	96	and	and	CCONJ
ajst-3255	164	97	low	low	ADJ
ajst-3255	164	98	orbit	orbit	NOUN
ajst-3255	164	99	;	;	PUNCT
ajst-3255	164	100	poor	poor	ADJ
ajst-3255	164	101	performance	performance	NOUN
ajst-3255	164	102	for	for	ADP
ajst-3255	164	103	high	high	ADJ
ajst-3255	164	104	orbit	orbit	NOUN
ajst-3255	164	105	simple	simple	ADJ
ajst-3255	164	106	and	and	CCONJ
ajst-3255	164	107	mature	mature	ADJ
ajst-3255	164	108	;	;	PUNCT
ajst-3255	164	109	accuracy	accuracy	NOUN
ajst-3255	164	110	decrease	decrease	NOUN
ajst-3255	164	111	as	as	ADP
ajst-3255	164	112	distance	distance	NOUN
ajst-3255	164	113	between	between	ADP
ajst-3255	164	114	probe	probe	NOUN
ajst-3255	164	115	and	and	CCONJ
ajst-3255	164	116	target	target	NOUN
ajst-3255	164	117	increase	increase	NOUN
ajst-3255	164	118	;	;	PUNCT
ajst-3255	164	119	better	well	ADJ
ajst-3255	164	120	for	for	ADP
ajst-3255	164	121	low	low	ADJ
ajst-3255	164	122	orbit	orbit	NOUN
ajst-3255	164	123	suitable	suitable	ADJ
ajst-3255	164	124	for	for	ADP
ajst-3255	164	125	deep	deep	ADJ
ajst-3255	164	126	space	space	NOUN
ajst-3255	164	127	;	;	PUNCT
ajst-3255	164	128	good	good	ADJ
ajst-3255	164	129	realtime	realtime	NOUN
ajst-3255	164	130	performance	performance	NOUN
ajst-3255	164	131	;	;	PUNCT
ajst-3255	164	132	have	have	VERB
ajst-3255	164	133	velocity	velocity	NOUN
ajst-3255	164	134	integration	integration	NOUN
ajst-3255	164	135	error	error	NOUN
ajst-3255	164	136	;	;	PUNCT
ajst-3255	164	137	still	still	ADV
ajst-3255	164	138	in	in	ADP
ajst-3255	164	139	engineering	engineering	NOUN
ajst-3255	164	140	test	test	NOUN
ajst-3255	164	141	stage	stage	NOUN
ajst-3255	164	142	suitable	suitable	ADJ
ajst-3255	164	143	for	for	ADP
ajst-3255	164	144	deep	deep	ADJ
ajst-3255	164	145	space	space	NOUN
ajst-3255	164	146	;	;	PUNCT
ajst-3255	164	147	high	high	ADJ
ajst-3255	164	148	accuracy	accuracy	NOUN
ajst-3255	164	149	;	;	PUNCT
ajst-3255	164	150	still	still	ADV
ajst-3255	164	151	in	in	ADP
ajst-3255	164	152	engineering	engineering	NOUN
ajst-3255	164	153	test	test	NOUN
ajst-3255	164	154	stage	stage	NOUN
ajst-3255	164	155	suitable	suitable	ADJ
ajst-3255	164	156	for	for	ADP
ajst-3255	164	157	deep	deep	ADJ
ajst-3255	164	158	space	space	NOUN
ajst-3255	164	159	;	;	PUNCT
ajst-3255	164	160	have	have	VERB
ajst-3255	164	161	a	a	DET
ajst-3255	164	162	lot	lot	NOUN
ajst-3255	164	163	of	of	ADP
ajst-3255	164	164	related	relate	VERB
ajst-3255	164	165	technologies	technology	NOUN
ajst-3255	164	166	;	;	PUNCT
ajst-3255	164	167	need	need	VERB
ajst-3255	164	168	more	more	ADJ
ajst-3255	164	169	engineering	engineering	NOUN
ajst-3255	164	170	test	test	NOUN
ajst-3255	164	171	71	71	NUM
ajst-3255	164	172	4	4	NUM
ajst-3255	164	173	.	.	PUNCT
ajst-3255	164	174	conclusion	conclusion	NOUN
ajst-3255	164	175	table	table	NOUN
ajst-3255	164	176	1	1	NUM
ajst-3255	164	177	is	be	AUX
ajst-3255	164	178	a	a	DET
ajst-3255	164	179	direct	direct	ADJ
ajst-3255	164	180	comparison	comparison	NOUN
ajst-3255	164	181	of	of	ADP
ajst-3255	164	182	these	these	DET
ajst-3255	164	183	navigation	navigation	NOUN
ajst-3255	164	184	methods	method	NOUN
ajst-3255	164	185	.	.	PUNCT
ajst-3255	165	1	different	different	ADJ
ajst-3255	165	2	navigation	navigation	NOUN
ajst-3255	165	3	methods	method	NOUN
ajst-3255	165	4	have	have	VERB
ajst-3255	165	5	different	different	ADJ
ajst-3255	165	6	advantages	advantage	NOUN
ajst-3255	165	7	.	.	PUNCT
ajst-3255	166	1	so	so	ADV
ajst-3255	166	2	it	it	PRON
ajst-3255	166	3	’s	’	VERB
ajst-3255	166	4	important	important	ADJ
ajst-3255	166	5	to	to	PART
ajst-3255	166	6	find	find	VERB
ajst-3255	166	7	the	the	DET
ajst-3255	166	8	suitable	suitable	ADJ
ajst-3255	166	9	navigation	navigation	NOUN
ajst-3255	166	10	method	method	NOUN
ajst-3255	166	11	and	and	CCONJ
ajst-3255	166	12	use	use	VERB
ajst-3255	166	13	the	the	DET
ajst-3255	166	14	proper	proper	ADJ
ajst-3255	166	15	integrated	integrated	ADJ
ajst-3255	166	16	navigation	navigation	NOUN
ajst-3255	166	17	for	for	ADP
ajst-3255	166	18	particular	particular	ADJ
ajst-3255	166	19	flight	flight	NOUN
ajst-3255	166	20	mission	mission	NOUN
ajst-3255	166	21	.	.	PUNCT
ajst-3255	167	1	it	it	PRON
ajst-3255	167	2	is	be	AUX
ajst-3255	167	3	predicted	predict	VERB
ajst-3255	167	4	that	that	SCONJ
ajst-3255	167	5	autonomous	autonomous	ADJ
ajst-3255	167	6	navigation	navigation	NOUN
ajst-3255	167	7	will	will	AUX
ajst-3255	167	8	become	become	VERB
ajst-3255	167	9	a	a	DET
ajst-3255	167	10	important	important	ADJ
ajst-3255	167	11	research	research	NOUN
ajst-3255	167	12	interest	interest	NOUN
ajst-3255	167	13	in	in	ADP
ajst-3255	167	14	the	the	DET
ajst-3255	167	15	future	future	NOUN
ajst-3255	167	16	.	.	PUNCT
ajst-3255	168	1	at	at	ADP
ajst-3255	168	2	the	the	DET
ajst-3255	168	3	same	same	ADJ
ajst-3255	168	4	time	time	NOUN
ajst-3255	168	5	,	,	PUNCT
ajst-3255	168	6	we	we	PRON
ajst-3255	168	7	will	will	AUX
ajst-3255	168	8	continue	continue	VERB
ajst-3255	168	9	to	to	PART
ajst-3255	168	10	develop	develop	VERB
ajst-3255	168	11	special	special	ADJ
ajst-3255	168	12	navigation	navigation	NOUN
ajst-3255	168	13	methods	method	NOUN
ajst-3255	168	14	and	and	CCONJ
ajst-3255	168	15	more	more	ADV
ajst-3255	168	16	integrated	integrated	ADJ
ajst-3255	168	17	navigation	navigation	NOUN
ajst-3255	168	18	methods	method	NOUN
ajst-3255	168	19	for	for	ADP
ajst-3255	168	20	various	various	ADJ
ajst-3255	168	21	scenarios	scenario	NOUN
ajst-3255	168	22	.	.	PUNCT
ajst-3255	169	1	references	reference	NOUN
ajst-3255	169	2	[	[	X
ajst-3255	169	3	1	1	NUM
ajst-3255	169	4	]	]	X
ajst-3255	169	5	zhou	zhou	PROPN
ajst-3255	169	6	j.	j.	PROPN
ajst-3255	169	7	(	(	PUNCT
ajst-3255	169	8	2001	2001	NUM
ajst-3255	169	9	)	)	PUNCT
ajst-3255	169	10	spacecraft	spacecraft	NOUN
ajst-3255	169	11	control	control	NOUN
ajst-3255	169	12	principle	principle	PROPN
ajst-3255	169	13	.	.	PUNCT
ajst-3255	170	1	northwestern	northwestern	PROPN
ajst-3255	170	2	polytechnical	polytechnical	PROPN
ajst-3255	170	3	university	university	PROPN
ajst-3255	170	4	publishing	publishing	NOUN
ajst-3255	170	5	house	house	NOUN
ajst-3255	170	6	.	.	PUNCT
ajst-3255	171	1	[	[	X
ajst-3255	171	2	2	2	X
ajst-3255	171	3	]	]	PUNCT
ajst-3255	171	4	chu	chu	PROPN
ajst-3255	171	5	y.	y.	PROPN
ajst-3255	171	6	(	(	PUNCT
ajst-3255	171	7	2009	2009	NUM
ajst-3255	171	8	)	)	PUNCT
ajst-3255	171	9	inertial	inertial	ADJ
ajst-3255	171	10	navigation	navigation	NOUN
ajst-3255	171	11	.	.	PUNCT
ajst-3255	172	1	satellite	satellite	NOUN
ajst-3255	172	2	and	and	CCONJ
ajst-3255	172	3	network	network	NOUN
ajst-3255	172	4	,	,	PUNCT
ajst-3255	172	5	3840	3840	NUM
ajst-3255	172	6	.	.	PUNCT
ajst-3255	173	1	[	[	X
ajst-3255	173	2	3	3	X
ajst-3255	173	3	]	]	X
ajst-3255	173	4	gong	gong	PROPN
ajst-3255	173	5	s	s	PROPN
ajst-3255	173	6	r，liu	r，liu	PROPN
ajst-3255	173	7	z	z	NOUN
ajst-3255	173	8	q，song	q，song	PROPN
ajst-3255	174	1	l	l	PROPN
ajst-3255	175	1	j，zhou	j，zhou	PROPN
ajst-3255	175	2	t.	t.	PROPN
ajst-3255	175	3	(	(	PUNCT
ajst-3255	175	4	2022	2022	NUM
ajst-3255	175	5	)	)	PUNCT
ajst-3255	175	6	development	development	NOUN
ajst-3255	175	7	and	and	CCONJ
ajst-3255	175	8	review	review	NOUN
ajst-3255	175	9	of	of	ADP
ajst-3255	175	10	foreign	foreign	ADJ
ajst-3255	175	11	inertial	inertial	ADJ
ajst-3255	175	12	technology	technology	NOUN
ajst-3255	175	13	in	in	ADP
ajst-3255	175	14	2021	2021	NUM
ajst-3255	175	15	.	.	PUNCT
ajst-3255	176	1	navigation	navigation	NOUN
ajst-3255	176	2	positioning	positioning	NOUN
ajst-3255	176	3	and	and	CCONJ
ajst-3255	176	4	timing	timing	NOUN
ajst-3255	176	5	,	,	PUNCT
ajst-3255	176	6	9	9	NUM
ajst-3255	176	7	:	:	SYM
ajst-3255	176	8	23	23	NUM
ajst-3255	176	9	-	-	SYM
ajst-3255	176	10	30	30	NUM
ajst-3255	176	11	.	.	PUNCT
ajst-3255	177	1	[	[	X
ajst-3255	177	2	4	4	NUM
ajst-3255	177	3	]	]	PUNCT
ajst-3255	177	4	cnipa	cnipa	ADJ
ajst-3255	177	5	.	.	PUNCT
ajst-3255	178	1	(	(	PUNCT
ajst-3255	178	2	2021	2021	NUM
ajst-3255	178	3	)	)	PUNCT
ajst-3255	178	4	.	.	PUNCT
ajst-3255	179	1	fabrication	fabrication	NOUN
ajst-3255	179	2	method	method	NOUN
ajst-3255	179	3	of	of	ADP
ajst-3255	179	4	multi	multi	ADJ
ajst-3255	179	5	-	-	ADJ
ajst-3255	179	6	cycle	cycle	ADJ
ajst-3255	179	7	design	design	NOUN
ajst-3255	179	8	for	for	ADP
ajst-3255	179	9	ring	re	VERB
ajst-3255	179	10	optical	optical	ADJ
ajst-3255	179	11	path	path	NOUN
ajst-3255	179	12	of	of	ADP
ajst-3255	179	13	laser	laser	NOUN
ajst-3255	179	14	gyro	gyro	NOUN
ajst-3255	179	15	.	.	PUNCT
ajst-3255	180	1	www.xjishu.com/zhuanli/52/202010552064.html/	www.xjishu.com/zhuanli/52/202010552064.html/	PROPN
ajst-3255	181	1	[	[	X
ajst-3255	181	2	5	5	NUM
ajst-3255	181	3	]	]	PUNCT
ajst-3255	181	4	broslavets	broslavet	VERB
ajst-3255	181	5	y	y	PROPN
ajst-3255	181	6	y，ambartsumyan	y，ambartsumyan	PROPN
ajst-3255	181	7	d	d	ADP
ajst-3255	181	8	m，semenov	m，semenov	NOUN
ajst-3255	181	9	v	v	NOUN
ajst-3255	181	10	g，et	g，et	NOUN
ajst-3255	181	11	al	al	PROPN
ajst-3255	181	12	.	.	PROPN
ajst-3255	182	1	(	(	PUNCT
ajst-3255	182	2	2021	2021	NUM
ajst-3255	182	3	)	)	PUNCT
ajst-3255	182	4	multifrequency	multifrequency	NOUN
ajst-3255	182	5	solid	solid	ADJ
ajst-3255	182	6	-	-	PUNCT
ajst-3255	182	7	state	state	NOUN
ajst-3255	182	8	ring	ring	NOUN
ajst-3255	182	9	laser	laser	NOUN
ajst-3255	182	10	gyroscope	gyroscope	NOUN
ajst-3255	182	11	based	base	VERB
ajst-3255	182	12	on	on	ADP
ajst-3255	182	13	yag	yag	NOUN
ajst-3255	182	14	:	:	PUNCT
ajst-3255	182	15	cr4	cr4	PROPN
ajst-3255	182	16	+	+	PROPN
ajst-3255	182	17	.	.	PUNCT
ajst-3255	182	18	proceedings	proceeding	NOUN
ajst-3255	182	19	of	of	ADP
ajst-3255	182	20	2021	2021	NUM
ajst-3255	182	21	28th	28th	ADJ
ajst-3255	182	22	saint	saint	PROPN
ajst-3255	182	23	peterburg	peterburg	PROPN
ajst-3255	182	24	international	international	PROPN
ajst-3255	182	25	conference	conference	NOUN
ajst-3255	182	26	on	on	ADP
ajst-3255	182	27	integrated	integrate	VERB
ajst-3255	182	28	navigation	navigation	NOUN
ajst-3255	182	29	systems	system	NOUN
ajst-3255	182	30	(	(	PUNCT
ajst-3255	182	31	icins	icin	NOUN
ajst-3255	182	32	)	)	PUNCT
ajst-3255	182	33	.	.	PUNCT
ajst-3255	183	1	[	[	X
ajst-3255	183	2	6	6	NUM
ajst-3255	183	3	]	]	PUNCT
ajst-3255	183	4	barantsev	barantsev	NOUN
ajst-3255	183	5	g	g	PROPN
ajst-3255	183	6	o，kozlov	o，kozlov	PROPN
ajst-3255	183	7	a	a	DET
ajst-3255	183	8	v，shaimardanov	v，shaimardanov	NOUN
ajst-3255	183	9	i	i	PRON
ajst-3255	183	10	k，et	k，et	PROPN
ajst-3255	183	11	a1	a1	PROPN
ajst-3255	183	12	.	.	PUNCT
ajst-3255	184	1	(	(	PUNCT
ajst-3255	184	2	2021	2021	NUM
ajst-3255	184	3	)	)	PUNCT
ajst-3255	184	4	elastic	elastic	ADJ
ajst-3255	184	5	dynamic	dynamic	ADJ
ajst-3255	184	6	torsion	torsion	NOUN
ajst-3255	184	7	of	of	ADP
ajst-3255	184	8	a	a	DET
ajst-3255	184	9	ring	ring	NOUN
ajst-3255	184	10	laser	laser	NOUN
ajst-3255	184	11	gyroscope	gyroscope	NOUN
ajst-3255	184	12	mechanical	mechanical	ADJ
ajst-3255	184	13	dither	dither	NOUN
ajst-3255	184	14	and	and	CCONJ
ajst-3255	184	15	its	its	PRON
ajst-3255	184	16	effect	effect	NOUN
ajst-3255	184	17	on	on	ADP
ajst-3255	184	18	the	the	DET
ajst-3255	184	19	accuracy	accuracy	NOUN
ajst-3255	184	20	of	of	ADP
ajst-3255	184	21	attitude	attitude	NOUN
ajst-3255	184	22	determination	determination	NOUN
ajst-3255	184	23	.	.	PUNCT
ajst-3255	185	1	proceedings	proceeding	NOUN
ajst-3255	185	2	of	of	ADP
ajst-3255	185	3	2021	2021	NUM
ajst-3255	185	4	28th	28th	ADJ
ajst-3255	185	5	saint	saint	PROPN
ajst-3255	185	6	peterburg	peterburg	PROPN
ajst-3255	185	7	international	international	PROPN
ajst-3255	185	8	conference	conference	NOUN
ajst-3255	185	9	on	on	ADP
ajst-3255	185	10	integrated	integrate	VERB
ajst-3255	185	11	navigation	navigation	NOUN
ajst-3255	185	12	systems	system	NOUN
ajst-3255	185	13	(	(	PUNCT
ajst-3255	185	14	icins	icin	NOUN
ajst-3255	185	15	)	)	PUNCT
ajst-3255	185	16	,	,	PUNCT
ajst-3255	185	17	1	1	NUM
ajst-3255	185	18	-	-	SYM
ajst-3255	185	19	4	4	NUM
ajst-3255	185	20	.	.	PUNCT
ajst-3255	186	1	[	[	X
ajst-3255	186	2	7	7	X
ajst-3255	186	3	]	]	X
ajst-3255	186	4	schilischting	schilischte	VERB
ajst-3255	186	5	m	m	NOUN
ajst-3255	186	6	w，bacurau	w，bacurau	PROPN
ajst-3255	186	7	r	r	NOUN
ajst-3255	186	8	m，ferreira	m，ferreira	PROPN
ajst-3255	186	9	e	e	PROPN
ajst-3255	186	10	c.	c.	PROPN
ajst-3255	186	11	(	(	PUNCT
ajst-3255	186	12	2021	2021	NUM
ajst-3255	186	13	)	)	PUNCT
ajst-3255	186	14	linearization	linearization	NOUN
ajst-3255	186	15	of	of	ADP
ajst-3255	186	16	open	open	ADJ
ajst-3255	186	17	-	-	PUNCT
ajst-3255	186	18	loop	loop	NOUN
ajst-3255	186	19	fiber	fiber	NOUN
ajst-3255	186	20	optic	optic	NOUN
ajst-3255	186	21	gyroscopes	gyroscope	NOUN
ajst-3255	186	22	with	with	ADP
ajst-3255	186	23	meanvalue	meanvalue	NOUN
ajst-3255	186	24	demodulation	demodulation	NOUN
ajst-3255	186	25	scheme	scheme	NOUN
ajst-3255	186	26	.	.	PUNCT
ajst-3255	187	1	proceedings	proceeding	NOUN
ajst-3255	187	2	of	of	ADP
ajst-3255	187	3	2021	2021	NUM
ajst-3255	187	4	dgon	dgon	NOUN
ajst-3255	187	5	inertial	inertial	ADJ
ajst-3255	187	6	sensors	sensor	NOUN
ajst-3255	187	7	and	and	CCONJ
ajst-3255	187	8	systems(iss	systems(iss	NOUN
ajst-3255	187	9	)	)	PUNCT
ajst-3255	187	10	.	.	PUNCT
ajst-3255	188	1	[	[	X
ajst-3255	188	2	8	8	NUM
ajst-3255	188	3	]	]	X
ajst-3255	188	4	remilieux	remilieux	PROPN
ajst-3255	188	5	g，goudon	g，goudon	PROPN
ajst-3255	188	6	j	j	PROPN
ajst-3255	188	7	c，roberfroid	c，roberfroid	PROPN
ajst-3255	188	8	d.	d.	PROPN
ajst-3255	188	9	(	(	PUNCT
ajst-3255	188	10	2011	2011	NUM
ajst-3255	188	11	)	)	PUNCT
ajst-3255	188	12	coriolisvibrating	coriolisvibrate	VERB
ajst-3255	188	13	gyros	gyro	NOUN
ajst-3255	188	14	for	for	ADP
ajst-3255	188	15	aeronautical	aeronautical	NOUN
ajst-3255	188	16	applications	application	NOUN
ajst-3255	188	17	.	.	PUNCT
ajst-3255	189	1	sae	sae	PROPN
ajst-3255	189	2	technical	technical	PROPN
ajst-3255	189	3	paper	paper	NOUN
ajst-3255	189	4	.	.	PUNCT
ajst-3255	190	1	[	[	X
ajst-3255	190	2	9	9	X
ajst-3255	190	3	]	]	PUNCT
ajst-3255	190	4	shuai	shuai	PROPN
ajst-3255	190	5	p	p	X
ajst-3255	190	6	,	,	PUNCT
ajst-3255	190	7	wei	wei	PROPN
ajst-3255	190	8	x	x	SYM
ajst-3255	190	9	b	b	PROPN
ajst-3255	190	10	,	,	PUNCT
ajst-3255	190	11	deng	deng	PROPN
ajst-3255	190	12	l.	l.	PROPN
ajst-3255	190	13	(	(	PUNCT
ajst-3255	190	14	2018	2018	NUM
ajst-3255	190	15	)	)	PUNCT
ajst-3255	190	16	a	a	DET
ajst-3255	190	17	survey	survey	NOUN
ajst-3255	190	18	of	of	ADP
ajst-3255	190	19	hemisperical	hemisperical	ADJ
ajst-3255	190	20	resonator	resonator	NOUN
ajst-3255	190	21	gyro	gyro	NOUN
ajst-3255	190	22	.	.	PUNCT
ajst-3255	191	1	navigation	navigation	NOUN
ajst-3255	191	2	positioning&timing	positioning&timing	PROPN
ajst-3255	191	3	,	,	PUNCT
ajst-3255	191	4	6	6	NUM
ajst-3255	191	5	:	:	SYM
ajst-3255	191	6	17	17	NUM
ajst-3255	191	7	-	-	SYM
ajst-3255	191	8	24	24	NUM
ajst-3255	191	9	.	.	PUNCT
ajst-3255	192	1	[	[	X
ajst-3255	192	2	10	10	NUM
ajst-3255	192	3	]	]	X
ajst-3255	192	4	matveev	matveev	PROPN
ajst-3255	192	5	b	b	PROPN
ajst-3255	192	6	a.	a.	NOUN
ajst-3255	192	7	(	(	PUNCT
ajst-3255	192	8	2009	2009	NUM
ajst-3255	192	9	)	)	PUNCT
ajst-3255	192	10	solid	solid	ADJ
ajst-3255	192	11	wave	wave	NOUN
ajst-3255	192	12	gyroscope	gyroscope	NOUN
ajst-3255	192	13	.	.	PUNCT
ajst-3255	193	1	national	national	PROPN
ajst-3255	193	2	defense	defense	PROPN
ajst-3255	193	3	industry	industry	NOUN
ajst-3255	193	4	press	press	NOUN
ajst-3255	193	5	,	,	PUNCT
ajst-3255	193	6	beijing	beijing	PROPN
ajst-3255	193	7	.	.	PUNCT
ajst-3255	194	1	[	[	X
ajst-3255	194	2	11	11	NUM
ajst-3255	194	3	]	]	X
ajst-3255	194	4	perelyaev	perelyaev	NOUN
ajst-3255	194	5	s	s	PART
ajst-3255	194	6	e，bodunov	e，bodunov	NOUN
ajst-3255	194	7	b	b	X
ajst-3255	194	8	p，bodunov	p，bodunov	PROPN
ajst-3255	194	9	s	s	PART
ajst-3255	194	10	b.	b.	NOUN
ajst-3255	194	11	(	(	PUNCT
ajst-3255	194	12	2017	2017	NUM
ajst-3255	194	13	)	)	PUNCT
ajst-3255	194	14	solidstate	solidstate	PROPN
ajst-3255	194	15	wave	wave	NOUN
ajst-3255	194	16	gyroscope：a	gyroscope：a	PROPN
ajst-3255	194	17	new	new	ADJ
ajst-3255	194	18	-	-	PUNCT
ajst-3255	194	19	generation	generation	NOUN
ajst-3255	194	20	inertial	inertial	ADJ
ajst-3255	194	21	sensor	sensor	NOUN
ajst-3255	194	22	.	.	PUNCT
ajst-3255	195	1	24	24	NUM
ajst-3255	195	2	th	th	NUM
ajst-3255	195	3	saint	saint	PROPN
ajst-3255	195	4	petersburg	petersburg	PROPN
ajst-3255	195	5	international	international	PROPN
ajst-3255	195	6	conference	conference	NOUN
ajst-3255	195	7	on	on	ADP
ajst-3255	195	8	integrated	integrate	VERB
ajst-3255	195	9	navigation	navigation	NOUN
ajst-3255	195	10	systems	system	NOUN
ajst-3255	195	11	,	,	PUNCT
ajst-3255	195	12	1	1	NUM
ajst-3255	195	13	-	-	SYM
ajst-3255	195	14	3	3	NUM
ajst-3255	195	15	.	.	PUNCT
ajst-3255	196	1	[	[	X
ajst-3255	196	2	12	12	NUM
ajst-3255	196	3	]	]	X
ajst-3255	196	4	zhao	zhao	PROPN
ajst-3255	196	5	w	w	PROPN
ajst-3255	196	6	l	l	PROPN
ajst-3255	196	7	,	,	PUNCT
ajst-3255	196	8	rong	rong	PROPN
ajst-3255	196	9	y	y	PROPN
ajst-3255	196	10	j	j	PROPN
ajst-3255	196	11	,	,	PUNCT
ajst-3255	196	12	qi	qi	PROPN
ajst-3255	196	13	y	y	PROPN
ajst-3255	196	14	n	n	CCONJ
ajst-3255	196	15	,	,	PUNCT
ajst-3255	196	16	et	et	PROPN
ajst-3255	196	17	al	al	PROPN
ajst-3255	196	18	.	.	PROPN
ajst-3255	197	1	(	(	PUNCT
ajst-3255	197	2	2015	2015	NUM
ajst-3255	197	3	)	)	PUNCT
ajst-3255	197	4	research	research	NOUN
ajst-3255	197	5	progress	progress	NOUN
ajst-3255	197	6	of	of	ADP
ajst-3255	197	7	inertial	inertial	ADJ
ajst-3255	197	8	sensors	sensor	NOUN
ajst-3255	197	9	for	for	ADP
ajst-3255	197	10	spaceborne	spaceborne	ADJ
ajst-3255	197	11	hemispherical	hemispherical	ADJ
ajst-3255	197	12	resonator	resonator	NOUN
ajst-3255	197	13	gyroscope	gyroscope	NOUN
ajst-3255	197	14	.	.	PUNCT
ajst-3255	198	1	7th	7th	ADJ
ajst-3255	198	2	annual	annual	ADJ
ajst-3255	198	3	academic	academic	ADJ
ajst-3255	198	4	meeting	meeting	NOUN
ajst-3255	198	5	of	of	ADP
ajst-3255	198	6	chinese	chinese	ADJ
ajst-3255	198	7	society	society	NOUN
ajst-3255	198	8	of	of	ADP
ajst-3255	198	9	inertial	inertial	ADJ
ajst-3255	198	10	technology	technology	NOUN
ajst-3255	198	11	,	,	PUNCT
ajst-3255	198	12	266	266	NUM
ajst-3255	198	13	-	-	SYM
ajst-3255	198	14	270	270	NUM
ajst-3255	198	15	.	.	PUNCT
ajst-3255	199	1	[	[	X
ajst-3255	199	2	13	13	NUM
ajst-3255	199	3	]	]	X
ajst-3255	199	4	liu	liu	PROPN
ajst-3255	199	5	f	f	PROPN
ajst-3255	199	6	c	c	PROPN
ajst-3255	199	7	,	,	PUNCT
ajst-3255	199	8	zhao	zhao	PROPN
ajst-3255	199	9	w	w	PROPN
ajst-3255	199	10	l	l	PROPN
ajst-3255	199	11	,	,	PUNCT
ajst-3255	199	12	yang	yang	PROPN
ajst-3255	199	13	h	h	PROPN
ajst-3255	199	14	,	,	PUNCT
ajst-3255	199	15	li	li	PROPN
ajst-3255	199	16	s	s	PROPN
ajst-3255	199	17	l	l	PROPN
ajst-3255	199	18	,	,	PUNCT
ajst-3255	199	19	cheng	cheng	PROPN
ajst-3255	199	20	y	y	PROPN
ajst-3255	199	21	x.	x.	PROPN
ajst-3255	199	22	(	(	PUNCT
ajst-3255	199	23	2020	2020	NUM
ajst-3255	199	24	)	)	PUNCT
ajst-3255	199	25	technology	technology	NOUN
ajst-3255	199	26	of	of	ADP
ajst-3255	199	27	hemispherical	hemispherical	ADJ
ajst-3255	199	28	resonator	resonator	NOUN
ajst-3255	199	29	gyroscope	gyroscope	NOUN
ajst-3255	199	30	.	.	PUNCT
ajst-3255	200	1	navigation	navigation	NOUN
ajst-3255	200	2	and	and	CCONJ
ajst-3255	200	3	control	control	NOUN
ajst-3255	200	4	,	,	PUNCT
ajst-3255	200	5	44	44	NUM
ajst-3255	200	6	:	:	SYM
ajst-3255	200	7	488	488	NUM
ajst-3255	200	8	-	-	SYM
ajst-3255	200	9	490	490	NUM
ajst-3255	200	10	.	.	PUNCT
ajst-3255	201	1	[	[	X
ajst-3255	201	2	14	14	NUM
ajst-3255	201	3	]	]	SYM
ajst-3255	201	4	wu	wu	PROPN
ajst-3255	201	5	g	g	PROPN
ajst-3255	201	6	h.	h.	PROPN
ajst-3255	201	7	(	(	PUNCT
ajst-3255	201	8	1998	1998	NUM
ajst-3255	201	9	)	)	PUNCT
ajst-3255	201	10	satellite	satellite	NOUN
ajst-3255	201	11	navigation	navigation	NOUN
ajst-3255	201	12	.	.	PUNCT
ajst-3255	202	1	china	china	PROPN
ajst-3255	202	2	communications	communications	PROPN
ajst-3255	202	3	press	press	PROPN
ajst-3255	202	4	,	,	PUNCT
ajst-3255	202	5	beijing	beijing	PROPN
ajst-3255	202	6	.	.	PUNCT
ajst-3255	203	1	[	[	X
ajst-3255	203	2	15	15	NUM
ajst-3255	203	3	]	]	X
ajst-3255	203	4	huang	huang	PROPN
ajst-3255	203	5	d	d	PROPN
ajst-3255	203	6	f，zhang	f，zhang	PROPN
ajst-3255	203	7	q，zhang	q，zhang	PROPN
ajst-3255	203	8	x	x	X
ajst-3255	203	9	h，zhou	h，zhou	PROPN
ajst-3255	203	10	l	l	NOUN
ajst-3255	203	11	t.	t.	NOUN
ajst-3255	203	12	(	(	PUNCT
ajst-3255	203	13	2015	2015	NUM
ajst-3255	203	14	)	)	PUNCT
ajst-3255	203	15	principle	principle	NOUN
ajst-3255	203	16	of	of	ADP
ajst-3255	203	17	satellite	satellite	NOUN
ajst-3255	203	18	navigation	navigation	NOUN
ajst-3255	203	19	and	and	CCONJ
ajst-3255	203	20	positioning	positioning	NOUN
ajst-3255	203	21	.	.	PUNCT
ajst-3255	204	1	wuhan	wuhan	PROPN
ajst-3255	204	2	university	university	PROPN
ajst-3255	204	3	press	press	PROPN
ajst-3255	204	4	,	,	PUNCT
ajst-3255	204	5	beijing	beijing	PROPN
ajst-3255	204	6	.	.	PUNCT
ajst-3255	205	1	[	[	X
ajst-3255	205	2	16	16	NUM
ajst-3255	205	3	]	]	X
ajst-3255	205	4	yan	yan	PROPN
ajst-3255	205	5	x	x	SYM
ajst-3255	206	1	x	x	PROPN
ajst-3255	206	2	,	,	PUNCT
ajst-3255	206	3	che	che	PROPN
ajst-3255	206	4	m	m	PROPN
ajst-3255	206	5	,	,	PUNCT
ajst-3255	206	6	gao	gao	PROPN
ajst-3255	206	7	x	x	SYM
ajst-3255	206	8	j.	j.	PROPN
ajst-3255	206	9	(	(	PUNCT
ajst-3255	206	10	2018	2018	NUM
ajst-3255	206	11	)	)	PUNCT
ajst-3255	206	12	design	design	NOUN
ajst-3255	206	13	of	of	ADP
ajst-3255	206	14	reliable	reliable	ADJ
ajst-3255	206	15	remote	remote	ADJ
ajst-3255	206	16	communication	communication	NOUN
ajst-3255	206	17	system	system	NOUN
ajst-3255	206	18	based	base	VERB
ajst-3255	206	19	on	on	ADP
ajst-3255	206	20	beidou	beidou	NOUN
ajst-3255	206	21	satellite	satellite	NOUN
ajst-3255	206	22	.	.	PUNCT
ajst-3255	207	1	electronic	electronic	ADJ
ajst-3255	207	2	information	information	NOUN
ajst-3255	207	3	countermeasure	countermeasure	NOUN
ajst-3255	207	4	technology	technology	NOUN
ajst-3255	207	5	,	,	PUNCT
ajst-3255	207	6	33	33	NUM
ajst-3255	207	7	:	:	SYM
ajst-3255	207	8	62	62	NUM
ajst-3255	207	9	-	-	SYM
ajst-3255	207	10	68	68	NUM
ajst-3255	207	11	.	.	PUNCT
ajst-3255	208	1	[	[	X
ajst-3255	208	2	17	17	NUM
ajst-3255	208	3	]	]	PUNCT
ajst-3255	208	4	he	he	PRON
ajst-3255	208	5	y	y	PROPN
ajst-3255	208	6	f	f	PROPN
ajst-3255	208	7	,	,	PUNCT
ajst-3255	208	8	wang	wang	PROPN
ajst-3255	208	9	j	j	PROPN
ajst-3255	208	10	s	s	PROPN
ajst-3255	208	11	,	,	PUNCT
ajst-3255	208	12	chen	chen	PROPN
ajst-3255	208	13	j	j	PROPN
ajst-3255	208	14	r	r	PROPN
ajst-3255	208	15	,	,	PUNCT
ajst-3255	208	16	et	et	PROPN
ajst-3255	208	17	al	al	PROPN
ajst-3255	208	18	.	.	PROPN
ajst-3255	209	1	(	(	PUNCT
ajst-3255	209	2	2012	2012	NUM
ajst-3255	209	3	)	)	PUNCT
ajst-3255	209	4	technique	technique	NOUN
ajst-3255	209	5	and	and	CCONJ
ajst-3255	209	6	application	application	NOUN
ajst-3255	209	7	of	of	ADP
ajst-3255	209	8	space	space	NOUN
ajst-3255	209	9	-	-	PUNCT
ajst-3255	209	10	based	base	VERB
ajst-3255	209	11	tt&c	tt&c	PROPN
ajst-3255	209	12	for	for	ADP
ajst-3255	209	13	leos	leos	PROPN
ajst-3255	209	14	based	base	VERB
ajst-3255	209	15	on	on	ADP
ajst-3255	209	16	compass-1	compass-1	NUM
ajst-3255	209	17	system	system	NOUN
ajst-3255	209	18	.	.	PUNCT
ajst-3255	210	1	geomatics	geomatics	PROPN
ajst-3255	210	2	and	and	CCONJ
ajst-3255	210	3	information	information	NOUN
ajst-3255	210	4	science	science	NOUN
ajst-3255	210	5	of	of	ADP
ajst-3255	210	6	wuhan	wuhan	PROPN
ajst-3255	210	7	university	university	PROPN
ajst-3255	210	8	,	,	PUNCT
ajst-3255	210	9	37	37	NUM
ajst-3255	210	10	:	:	PUNCT
ajst-3255	210	11	441	441	NUM
ajst-3255	210	12	-	-	SYM
ajst-3255	210	13	444	444	NUM
ajst-3255	210	14	.	.	PUNCT
ajst-3255	211	1	[	[	X
ajst-3255	211	2	18	18	NUM
ajst-3255	211	3	]	]	X
ajst-3255	211	4	china	china	PROPN
ajst-3255	211	5	satellite	satellite	PROPN
ajst-3255	211	6	navigation	navigation	PROPN
ajst-3255	211	7	office	office	NOUN
ajst-3255	211	8	.	.	PUNCT
ajst-3255	212	1	(	(	PUNCT
ajst-3255	212	2	2019	2019	NUM
ajst-3255	212	3	)	)	PUNCT
ajst-3255	212	4	the	the	DET
ajst-3255	212	5	application	application	NOUN
ajst-3255	212	6	service	service	NOUN
ajst-3255	212	7	architecture	architecture	NOUN
ajst-3255	212	8	of	of	ADP
ajst-3255	212	9	beidou	beidou	NOUN
ajst-3255	212	10	navigation	navigation	NOUN
ajst-3255	212	11	satellite	satellite	NOUN
ajst-3255	212	12	system	system	NOUN
ajst-3255	212	13	(	(	PUNCT
ajst-3255	212	14	version	version	NOUN
ajst-3255	212	15	1.0	1.0	NUM
ajst-3255	212	16	)	)	PUNCT
ajst-3255	212	17	.	.	PUNCT
ajst-3255	213	1	https://www.beidou.gov.cn/xt/gfxz	https://www.beidou.gov.cn/xt/gfxz	PROPN
ajst-3255	213	2	.	.	PUNCT
ajst-3255	214	1	[	[	X
ajst-3255	214	2	19	19	NUM
ajst-3255	214	3	]	]	X
ajst-3255	214	4	china	china	PROPN
ajst-3255	214	5	satellite	satellite	PROPN
ajst-3255	214	6	navigation	navigation	PROPN
ajst-3255	214	7	office	office	NOUN
ajst-3255	214	8	.	.	PUNCT
ajst-3255	215	1	(	(	PUNCT
ajst-3255	215	2	2019	2019	NUM
ajst-3255	215	3	)	)	PUNCT
ajst-3255	215	4	the	the	DET
ajst-3255	215	5	development	development	NOUN
ajst-3255	215	6	of	of	ADP
ajst-3255	215	7	beidou	beidou	NOUN
ajst-3255	215	8	navigation	navigation	NOUN
ajst-3255	215	9	satellite	satellite	NOUN
ajst-3255	215	10	system(version	system(version	PROPN
ajst-3255	215	11	4.0	4.0	NUM
ajst-3255	215	12	)	)	PUNCT
ajst-3255	215	13	.	.	PUNCT
ajst-3255	216	1	https://www.beidou.gov.cn/xt/	https://www.beidou.gov.cn/xt/	PROPN
ajst-3255	216	2	gfxz	gfxz	PROPN
ajst-3255	216	3	.	.	PUNCT
ajst-3255	217	1	[	[	X
ajst-3255	217	2	20	20	NUM
ajst-3255	217	3	]	]	PUNCT
ajst-3255	217	4	chai	chai	NOUN
ajst-3255	217	5	j	j	PROPN
ajst-3255	217	6	x	x	PROPN
ajst-3255	217	7	,	,	PUNCT
ajst-3255	217	8	wang	wang	PROPN
ajst-3255	217	9	x	x	PROPN
ajst-3255	217	10	l	l	PROPN
ajst-3255	217	11	,	,	PUNCT
ajst-3255	217	12	yu	yu	PROPN
ajst-3255	217	13	n	n	PROPN
ajst-3255	217	14	j	j	PROPN
ajst-3255	217	15	,	,	PUNCT
ajst-3255	217	16	et	et	PROPN
ajst-3255	217	17	al	al	PROPN
ajst-3255	217	18	.	.	PUNCT
ajst-3255	218	1	(	(	PUNCT
ajst-3255	218	2	2018	2018	NUM
ajst-3255	218	3	)	)	PUNCT
ajst-3255	218	4	modeling	modeling	NOUN
ajst-3255	218	5	and	and	CCONJ
ajst-3255	218	6	strength	strength	NOUN
ajst-3255	218	7	analysis	analysis	NOUN
ajst-3255	218	8	of	of	ADP
ajst-3255	218	9	gnss	gnss	NOUN
ajst-3255	218	10	signal	signal	NOUN
ajst-3255	218	11	propagation	propagation	NOUN
ajst-3255	218	12	link	link	NOUN
ajst-3255	218	13	of	of	ADP
ajst-3255	218	14	high	high	ADJ
ajst-3255	218	15	orbit	orbit	NOUN
ajst-3255	218	16	spacecraft	spacecraft	NOUN
ajst-3255	218	17	.	.	PUNCT
ajst-3255	219	1	journal	journal	PROPN
ajst-3255	219	2	of	of	ADP
ajst-3255	219	3	beijing	beijing	PROPN
ajst-3255	219	4	university	university	PROPN
ajst-3255	219	5	of	of	ADP
ajst-3255	219	6	aeronautics	aeronautic	NOUN
ajst-3255	219	7	and	and	CCONJ
ajst-3255	219	8	astronautics	astronautic	NOUN
ajst-3255	219	9	,	,	PUNCT
ajst-3255	219	10	44	44	NUM
ajst-3255	219	11	:	:	SYM
ajst-3255	219	12	1496	1496	NUM
ajst-3255	219	13	-	-	SYM
ajst-3255	219	14	1503	1503	NUM
ajst-3255	219	15	.	.	PUNCT
ajst-3255	220	1	[	[	X
ajst-3255	220	2	21	21	NUM
ajst-3255	220	3	]	]	X
ajst-3255	220	4	wang	wang	PROPN
ajst-3255	220	5	m	m	PROPN
ajst-3255	220	6	,	,	PUNCT
ajst-3255	220	7	dan	dan	PROPN
ajst-3255	220	8	t	t	PROPN
ajst-3255	220	9	,	,	PUNCT
ajst-3255	220	10	wang	wang	PROPN
ajst-3255	220	11	d.	d.	PROPN
ajst-3255	220	12	(	(	PUNCT
ajst-3255	220	13	2020	2020	NUM
ajst-3255	220	14	)	)	PUNCT
ajst-3255	220	15	development	development	NOUN
ajst-3255	220	16	of	of	ADP
ajst-3255	220	17	gnss	gnss	NOUN
ajst-3255	220	18	technology	technology	NOUN
ajst-3255	220	19	for	for	ADP
ajst-3255	220	20	high	high	ADJ
ajst-3255	220	21	orbit	orbit	NOUN
ajst-3255	220	22	spacecraft	spacecraft	NOUN
ajst-3255	220	23	.	.	PUNCT
ajst-3255	221	1	journal	journal	PROPN
ajst-3255	221	2	of	of	ADP
ajst-3255	221	3	surveying	surveying	NOUN
ajst-3255	221	4	and	and	CCONJ
ajst-3255	221	5	mapping	mapping	NOUN
ajst-3255	221	6	,	,	PUNCT
ajst-3255	221	7	49	49	NUM
ajst-3255	221	8	:	:	PUNCT
ajst-3255	221	9	1158	1158	NUM
ajst-3255	221	10	-	-	SYM
ajst-3255	221	11	1167	1167	NUM
ajst-3255	221	12	.	.	PUNCT
ajst-3255	222	1	[	[	X
ajst-3255	222	2	22	22	NUM
ajst-3255	222	3	]	]	X
ajst-3255	222	4	zhou	zhou	PROPN
ajst-3255	222	5	y	y	PROPN
ajst-3255	222	6	,	,	PUNCT
ajst-3255	222	7	zhou	zhou	PROPN
ajst-3255	222	8	l.	l.	PROPN
ajst-3255	222	9	(	(	PUNCT
ajst-3255	222	10	2022	2022	NUM
ajst-3255	222	11	)	)	PUNCT
ajst-3255	222	12	analysis	analysis	NOUN
ajst-3255	222	13	of	of	ADP
ajst-3255	222	14	beidou	beidou	NOUN
ajst-3255	222	15	navigation	navigation	NOUN
ajst-3255	222	16	characteristics	characteristic	NOUN
ajst-3255	222	17	of	of	ADP
ajst-3255	222	18	high	high	ADJ
ajst-3255	222	19	orbit	orbit	NOUN
ajst-3255	222	20	spacecraft	spacecraft	NOUN
ajst-3255	222	21	.	.	PUNCT
ajst-3255	223	1	modern	modern	ADJ
ajst-3255	223	2	navigation	navigation	NOUN
ajst-3255	223	3	,	,	PUNCT
ajst-3255	223	4	4	4	NUM
ajst-3255	223	5	:	:	SYM
ajst-3255	223	6	85	85	NUM
ajst-3255	223	7	-	-	SYM
ajst-3255	223	8	91	91	NUM
ajst-3255	223	9	.	.	PUNCT
ajst-3255	224	1	[	[	X
ajst-3255	224	2	23	23	NUM
ajst-3255	224	3	]	]	PUNCT
ajst-3255	224	4	hubei	hubei	PROPN
ajst-3255	224	5	news	news	PROPN
ajst-3255	224	6	.	.	PUNCT
ajst-3255	225	1	(	(	PUNCT
ajst-3255	225	2	2020	2020	NUM
ajst-3255	225	3	)	)	PUNCT
ajst-3255	225	4	the	the	DET
ajst-3255	225	5	last	last	ADJ
ajst-3255	225	6	network	network	NOUN
ajst-3255	225	7	satellite	satellite	NOUN
ajst-3255	225	8	of	of	ADP
ajst-3255	225	9	the	the	DET
ajst-3255	225	10	beidou-3	beidou-3	NUM
ajst-3255	225	11	system	system	NOUN
ajst-3255	225	12	has	have	AUX
ajst-3255	225	13	entered	enter	VERB
ajst-3255	225	14	the	the	DET
ajst-3255	225	15	network	network	NOUN
ajst-3255	225	16	.	.	PUNCT
ajst-3255	226	1	baijiahao.baidu.com/s?id=1673543914004556278	baijiahao.baidu.com/s?id=1673543914004556278	PROPN
ajst-3255	226	2	.	.	PUNCT
ajst-3255	227	1	[	[	X
ajst-3255	227	2	24	24	NUM
ajst-3255	227	3	]	]	X
ajst-3255	227	4	chen	chen	PROPN
ajst-3255	227	5	j	j	PROPN
ajst-3255	227	6	z.	z.	PROPN
ajst-3255	227	7	(	(	PUNCT
ajst-3255	227	8	2000	2000	NUM
ajst-3255	227	9	)	)	PUNCT
ajst-3255	227	10	astronomical	astronomical	ADJ
ajst-3255	227	11	navigation	navigation	NOUN
ajst-3255	227	12	and	and	CCONJ
ajst-3255	227	13	starlight	starlight	NOUN
ajst-3255	227	14	guidance	guidance	NOUN
ajst-3255	227	15	.	.	PUNCT
ajst-3255	228	1	ship	ship	NOUN
ajst-3255	228	2	navigation	navigation	NOUN
ajst-3255	228	3	,	,	PUNCT
ajst-3255	228	4	1	1	NUM
ajst-3255	228	5	:	:	SYM
ajst-3255	228	6	62	62	NUM
ajst-3255	228	7	-	-	SYM
ajst-3255	228	8	65	65	NUM
ajst-3255	228	9	.	.	PUNCT
ajst-3255	229	1	[	[	X
ajst-3255	229	2	25	25	NUM
ajst-3255	229	3	]	]	X
ajst-3255	229	4	zhang	zhang	PROPN
ajst-3255	229	5	w	w	PROPN
ajst-3255	229	6	,	,	PUNCT
ajst-3255	229	7	zhang	zhang	PROPN
ajst-3255	229	8	h.	h.	PROPN
ajst-3255	229	9	(	(	PUNCT
ajst-3255	229	10	2016	2016	NUM
ajst-3255	229	11	)	)	PUNCT
ajst-3255	229	12	research	research	NOUN
ajst-3255	229	13	on	on	ADP
ajst-3255	229	14	problems	problem	NOUN
ajst-3255	229	15	of	of	ADP
ajst-3255	229	16	celestial	celestial	ADJ
ajst-3255	229	17	navigation	navigation	NOUN
ajst-3255	229	18	in	in	ADP
ajst-3255	229	19	space	space	NOUN
ajst-3255	229	20	engineering	engineering	NOUN
ajst-3255	229	21	.	.	PUNCT
ajst-3255	230	1	journal	journal	NOUN
ajst-3255	230	2	of	of	ADP
ajst-3255	230	3	deep	deep	ADJ
ajst-3255	230	4	space	space	NOUN
ajst-3255	230	5	exploration	exploration	NOUN
ajst-3255	230	6	,	,	PUNCT
ajst-3255	230	7	3	3	NUM
ajst-3255	230	8	:	:	SYM
ajst-3255	230	9	204	204	NUM
ajst-3255	230	10	-	-	SYM
ajst-3255	230	11	213	213	NUM
ajst-3255	230	12	.	.	PUNCT
ajst-3255	231	1	[	[	X
ajst-3255	231	2	26	26	NUM
ajst-3255	231	3	]	]	X
ajst-3255	231	4	yim	yim	PROPN
ajst-3255	231	5	j	j	PROPN
ajst-3255	231	6	r，crassidis	r，crassidis	PROPN
ajst-3255	231	7	j	j	PROPN
ajst-3255	231	8	l，junkins	l，junkins	PROPN
ajst-3255	231	9	j	j	PROPN
ajst-3255	231	10	l.	l.	PROPN
ajst-3255	231	11	(	(	PUNCT
ajst-3255	231	12	2000	2000	NUM
ajst-3255	231	13	)	)	PUNCT
ajst-3255	231	14	autonomous	autonomous	ADJ
ajst-3255	231	15	orbit	orbit	NOUN
ajst-3255	231	16	navigation	navigation	NOUN
ajst-3255	231	17	of	of	ADP
ajst-3255	231	18	interplanetary	interplanetary	ADJ
ajst-3255	231	19	spacecraft	spacecraft	NOUN
ajst-3255	231	20	.	.	PUNCT
ajst-3255	232	1	aiaa	aiaa	PROPN
ajst-3255	232	2	/	/	SYM
ajst-3255	232	3	aas	aas	PROPN
ajst-3255	232	4	astrodynamics	astrodynamics	PROPN
ajst-3255	232	5	specialist	specialist	PROPN
ajst-3255	232	6	conference	conference	PROPN
ajst-3255	232	7	.	.	PUNCT
ajst-3255	233	1	reston	reston	PROPN
ajst-3255	233	2	,	,	PUNCT
ajst-3255	233	3	va：aiaa	va：aiaa	VERB
ajst-3255	233	4	paper	paper	NOUN
ajst-3255	233	5	,	,	PUNCT
ajst-3255	233	6	53	53	NUM
ajst-3255	233	7	-	-	SYM
ajst-3255	233	8	61	61	NUM
ajst-3255	233	9	.	.	PUNCT
ajst-3255	234	1	[	[	X
ajst-3255	234	2	27	27	NUM
ajst-3255	234	3	]	]	X
ajst-3255	234	4	ning	ning	NOUN
ajst-3255	234	5	x	x	SYM
ajst-3255	234	6	l	l	NOUN
ajst-3255	234	7	,	,	PUNCT
ajst-3255	234	8	fang	fang	PROPN
ajst-3255	234	9	j	j	PROPN
ajst-3255	234	10	c.	c.	PROPN
ajst-3255	234	11	(	(	PUNCT
ajst-3255	234	12	2007	2007	NUM
ajst-3255	234	13	)	)	PUNCT
ajst-3255	234	14	an	an	DET
ajst-3255	234	15	autonomous	autonomous	ADJ
ajst-3255	234	16	celestial	celestial	ADJ
ajst-3255	234	17	navigation	navigation	NOUN
ajst-3255	234	18	method	method	NOUN
ajst-3255	234	19	for	for	ADP
ajst-3255	234	20	leo	leo	PROPN
ajst-3255	234	21	satellite	satellite	PROPN
ajst-3255	234	22	based	base	VERB
ajst-3255	234	23	on	on	ADP
ajst-3255	234	24	unscented	unscente	VERB
ajst-3255	234	25	kalman	kalman	PROPN
ajst-3255	234	26	filter	filter	PROPN
ajst-3255	234	27	and	and	CCONJ
ajst-3255	234	28	information	information	NOUN
ajst-3255	234	29	fusion	fusion	NOUN
ajst-3255	234	30	.	.	PUNCT
ajst-3255	235	1	aerospace	aerospace	NOUN
ajst-3255	235	2	science	science	NOUN
ajst-3255	235	3	and	and	CCONJ
ajst-3255	235	4	technology	technology	NOUN
ajst-3255	235	5	,	,	PUNCT
ajst-3255	235	6	11	11	NUM
ajst-3255	235	7	:	:	SYM
ajst-3255	235	8	222228	222228	NUM
ajst-3255	235	9	.	.	PUNCT
ajst-3255	236	1	[	[	X
ajst-3255	236	2	28	28	NUM
ajst-3255	236	3	]	]	X
ajst-3255	236	4	zhang	zhang	PROPN
ajst-3255	236	5	w	w	PROPN
ajst-3255	236	6	,	,	PUNCT
ajst-3255	236	7	xu	xu	PROPN
ajst-3255	236	8	j	j	PROPN
ajst-3255	236	9	,	,	PUNCT
ajst-3255	236	10	huang	huang	PROPN
ajst-3255	236	11	q	q	PROPN
ajst-3255	236	12	l	l	PROPN
ajst-3255	236	13	,	,	PUNCT
ajst-3255	236	14	et	et	PROPN
ajst-3255	236	15	al	al	PROPN
ajst-3255	236	16	.	.	PROPN
ajst-3255	236	17	(	(	PUNCT
ajst-3255	236	18	2020	2020	NUM
ajst-3255	236	19	)	)	PUNCT
ajst-3255	236	20	survey	survey	NOUN
ajst-3255	236	21	of	of	ADP
ajst-3255	236	22	autonomous	autonomous	ADJ
ajst-3255	236	23	celestial	celestial	ADJ
ajst-3255	236	24	navigation	navigation	NOUN
ajst-3255	236	25	technology	technology	NOUN
ajst-3255	236	26	for	for	ADP
ajst-3255	236	27	deep	deep	ADJ
ajst-3255	236	28	space	space	NOUN
ajst-3255	236	29	.	.	PUNCT
ajst-3255	237	1	flight	flight	NOUN
ajst-3255	237	2	control&detection	control&detection	NOUN
ajst-3255	237	3	,	,	PUNCT
ajst-3255	237	4	3	3	NUM
ajst-3255	237	5	:	:	SYM
ajst-3255	237	6	8	8	NUM
ajst-3255	237	7	-	-	SYM
ajst-3255	237	8	16	16	NUM
ajst-3255	237	9	.	.	PUNCT
ajst-3255	238	1	[	[	X
ajst-3255	238	2	29	29	NUM
ajst-3255	238	3	]	]	X
ajst-3255	238	4	franklin	franklin	PROPN
ajst-3255	238	5	r	r	PROPN
ajst-3255	238	6	g	g	PROPN
ajst-3255	238	7	,	,	PUNCT
ajst-3255	238	8	birx	birx	X
ajst-3255	238	9	d	d	X
ajst-3255	238	10	l.	l.	PROPN
ajst-3255	238	11	(	(	PUNCT
ajst-3255	238	12	1960	1960	NUM
ajst-3255	238	13	)	)	PUNCT
ajst-3255	238	14	a	a	DET
ajst-3255	238	15	study	study	NOUN
ajst-3255	238	16	of	of	ADP
ajst-3255	238	17	natural	natural	ADJ
ajst-3255	238	18	electromagnetic	electromagnetic	ADJ
ajst-3255	238	19	phenomena	phenomenon	NOUN
ajst-3255	238	20	for	for	ADP
ajst-3255	238	21	space	space	NOUN
ajst-3255	238	22	navigation	navigation	NOUN
ajst-3255	238	23	.	.	PUNCT
ajst-3255	239	1	proceedings	proceeding	NOUN
ajst-3255	239	2	of	of	ADP
ajst-3255	239	3	the	the	DET
ajst-3255	239	4	ire	ire	NOUN
ajst-3255	239	5	,	,	PUNCT
ajst-3255	239	6	48	48	NUM
ajst-3255	239	7	:	:	SYM
ajst-3255	239	8	532	532	NUM
ajst-3255	239	9	-	-	SYM
ajst-3255	239	10	541	541	NUM
ajst-3255	239	11	.	.	PUNCT
ajst-3255	240	1	[	[	X
ajst-3255	240	2	30	30	NUM
ajst-3255	240	3	]	]	PUNCT
ajst-3255	240	4	he	he	PRON
ajst-3255	240	5	j.	j.	PROPN
ajst-3255	240	6	(	(	PUNCT
ajst-3255	240	7	2005	2005	NUM
ajst-3255	240	8	)	)	PUNCT
ajst-3255	240	9	review	review	NOUN
ajst-3255	240	10	on	on	ADP
ajst-3255	240	11	the	the	DET
ajst-3255	240	12	development	development	NOUN
ajst-3255	240	13	of	of	ADP
ajst-3255	240	14	astronomical	astronomical	ADJ
ajst-3255	240	15	navigation	navigation	NOUN
ajst-3255	240	16	technology	technology	NOUN
ajst-3255	240	17	abroad	abroad	ADV
ajst-3255	240	18	.	.	PUNCT
ajst-3255	241	1	ship	ship	NOUN
ajst-3255	241	2	science	science	NOUN
ajst-3255	241	3	and	and	CCONJ
ajst-3255	241	4	technology	technology	NOUN
ajst-3255	241	5	,	,	PUNCT
ajst-3255	241	6	27	27	NUM
ajst-3255	241	7	:	:	SYM
ajst-3255	241	8	91	91	NUM
ajst-3255	241	9	-	-	SYM
ajst-3255	241	10	96	96	NUM
ajst-3255	241	11	.	.	PUNCT
ajst-3255	242	1	[	[	X
ajst-3255	242	2	31	31	NUM
ajst-3255	242	3	]	]	X
ajst-3255	242	4	zhou	zhou	PROPN
ajst-3255	242	5	q	q	PROPN
ajst-3255	242	6	y.	y.	PROPN
ajst-3255	242	7	(	(	PUNCT
ajst-3255	242	8	2020	2020	NUM
ajst-3255	242	9	)	)	PUNCT
ajst-3255	242	10	x	x	X
ajst-3255	242	11	-	-	PUNCT
ajst-3255	242	12	ray	ray	NOUN
ajst-3255	242	13	pulsar	pulsar	NOUN
ajst-3255	242	14	.	.	PUNCT
ajst-3255	243	1	zhuanlan.zhihu.com/p/265591862	zhuanlan.zhihu.com/p/265591862	NOUN
ajst-3255	243	2	.	.	PUNCT
ajst-3255	244	1	[	[	X
ajst-3255	244	2	32	32	NUM
ajst-3255	244	3	]	]	SYM
ajst-3255	244	4	chester	chester	PROPN
ajst-3255	244	5	t	t	PROPN
ajst-3255	244	6	j	j	PROPN
ajst-3255	244	7	,	,	PUNCT
ajst-3255	244	8	butman	butman	NOUN
ajst-3255	244	9	s	s	PART
ajst-3255	244	10	a.	a.	NOUN
ajst-3255	244	11	(	(	PUNCT
ajst-3255	244	12	1981	1981	NUM
ajst-3255	244	13	)	)	PUNCT
ajst-3255	244	14	navigation	navigation	NOUN
ajst-3255	244	15	using	use	VERB
ajst-3255	244	16	x	x	PROPN
ajst-3255	244	17	-	-	NOUN
ajst-3255	244	18	ray	ray	NOUN
ajst-3255	244	19	pulsars	pulsar	NOUN
ajst-3255	244	20	.	.	PUNCT
ajst-3255	245	1	jet	jet	NOUN
ajst-3255	245	2	propulsion	propulsion	NOUN
ajst-3255	245	3	laboratory	laboratory	NOUN
ajst-3255	245	4	,	,	PUNCT
ajst-3255	245	5	pasadena	pasadena	PROPN
ajst-3255	245	6	ca	ca	PROPN
ajst-3255	245	7	,	,	PUNCT
ajst-3255	245	8	nasa	nasa	PROPN
ajst-3255	245	9	tech	tech	PROPN
ajst-3255	245	10	rep	rep	PROPN
ajst-3255	245	11	81n27129	81n27129	PROPN
ajst-3255	245	12	.	.	PUNCT
ajst-3255	246	1	[	[	X
ajst-3255	246	2	33	33	NUM
ajst-3255	246	3	]	]	PUNCT
ajst-3255	246	4	pines	pine	NOUN
ajst-3255	246	5	d	d	X
ajst-3255	246	6	j.	j.	PROPN
ajst-3255	246	7	(	(	PUNCT
ajst-3255	246	8	2004	2004	NUM
ajst-3255	246	9	)	)	PUNCT
ajst-3255	246	10	arpa	arpa	PROPN
ajst-3255	246	11	/	/	SYM
ajst-3255	246	12	darpa	darpa	NOUN
ajst-3255	246	13	space	space	NOUN
ajst-3255	246	14	programs	program	NOUN
ajst-3255	246	15	.	.	PUNCT
ajst-3255	247	1	xnav	xnav	PROPN
ajst-3255	247	2	industry	industry	PROPN
ajst-3255	247	3	day	day	NOUN
ajst-3255	247	4	.	.	PUNCT
ajst-3255	248	1	[	[	X
ajst-3255	248	2	34	34	NUM
ajst-3255	248	3	]	]	PUNCT
ajst-3255	248	4	shuai	shuai	PROPN
ajst-3255	248	5	p	p	X
ajst-3255	248	6	,	,	PUNCT
ajst-3255	248	7	chen	chen	PROPN
ajst-3255	248	8	s	s	PROPN
ajst-3255	248	9	l	l	PROPN
ajst-3255	248	10	,	,	PUNCT
ajst-3255	248	11	wu	wu	PROPN
ajst-3255	248	12	y	y	PROPN
ajst-3255	248	13	f	f	PROPN
ajst-3255	248	14	,	,	PUNCT
ajst-3255	248	15	et	et	PROPN
ajst-3255	248	16	al	al	PROPN
ajst-3255	248	17	.	.	PUNCT
ajst-3255	249	1	(	(	PUNCT
ajst-3255	249	2	2007	2007	NUM
ajst-3255	249	3	)	)	PUNCT
ajst-3255	249	4	navigation	navigation	NOUN
ajst-3255	249	5	principles	principle	NOUN
ajst-3255	249	6	using	use	VERB
ajst-3255	249	7	x	x	NOUN
ajst-3255	249	8	-	-	NOUN
ajst-3255	249	9	ray	ray	NOUN
ajst-3255	249	10	pulsars	pulsar	NOUN
ajst-3255	249	11	.	.	PUNCT
ajst-3255	250	1	journal	journal	PROPN
ajst-3255	250	2	of	of	ADP
ajst-3255	250	3	astronautics	astronautic	NOUN
ajst-3255	250	4	,	,	PUNCT
ajst-3255	250	5	28	28	NUM
ajst-3255	250	6	:	:	SYM
ajst-3255	250	7	1538	1538	NUM
ajst-3255	250	8	-	-	SYM
ajst-3255	250	9	1543	1543	NUM
ajst-3255	250	10	.	.	PUNCT
ajst-3255	251	1	[	[	X
ajst-3255	251	2	35	35	NUM
ajst-3255	251	3	]	]	X
ajst-3255	251	4	zhou	zhou	PROPN
ajst-3255	251	5	c	c	PROPN
ajst-3255	251	6	h	h	PROPN
ajst-3255	251	7	,	,	PUNCT
ajst-3255	251	8	qian	qian	PROPN
ajst-3255	251	9	w	w	PROPN
ajst-3255	251	10	p	p	PROPN
ajst-3255	251	11	,	,	PUNCT
ajst-3255	251	12	guo	guo	PROPN
ajst-3255	251	13	j	j	PROPN
ajst-3255	251	14	h	h	PROPN
ajst-3255	251	15	,	,	PUNCT
ajst-3255	251	16	zhao	zhao	PROPN
ajst-3255	251	17	h.	h.	PROPN
ajst-3255	251	18	(	(	PUNCT
ajst-3255	251	19	2015	2015	NUM
ajst-3255	251	20	)	)	PUNCT
ajst-3255	251	21	synopsis	synopsis	NOUN
ajst-3255	251	22	of	of	ADP
ajst-3255	251	23	pulsar	pulsar	PROPN
ajst-3255	251	24	navigation	navigation	NOUN
ajst-3255	251	25	development	development	PROPN
ajst-3255	251	26	.	.	PUNCT
ajst-3255	252	1	journal	journal	PROPN
ajst-3255	252	2	of	of	ADP
ajst-3255	252	3	nanjing	nanjing	PROPN
ajst-3255	252	4	university	university	PROPN
ajst-3255	252	5	of	of	ADP
ajst-3255	252	6	information	information	NOUN
ajst-3255	252	7	science	science	NOUN
ajst-3255	252	8	and	and	CCONJ
ajst-3255	252	9	technology	technology	NOUN
ajst-3255	252	10	:	:	PUNCT
ajst-3255	252	11	natural	natural	ADJ
ajst-3255	252	12	science	science	NOUN
ajst-3255	252	13	edition	edition	NOUN
ajst-3255	252	14	,	,	PUNCT
ajst-3255	252	15	7	7	NUM
ajst-3255	252	16	:	:	SYM
ajst-3255	252	17	241	241	NUM
ajst-3255	252	18	-	-	SYM
ajst-3255	252	19	246	246	NUM
ajst-3255	252	20	.	.	PUNCT
ajst-3255	252	21	72	72	NUM
ajst-3255	253	1	[	[	X
ajst-3255	253	2	36	36	NUM
ajst-3255	253	3	]	]	X
ajst-3255	253	4	wang	wang	PROPN
ajst-3255	253	5	h	h	PROPN
ajst-3255	253	6	m.	m.	PROPN
ajst-3255	253	7	(	(	PUNCT
ajst-3255	253	8	2018	2018	NUM
ajst-3255	253	9	)	)	PUNCT
ajst-3255	253	10	nasa	nasa	PROPN
ajst-3255	253	11	has	have	AUX
ajst-3255	253	12	completed	complete	VERB
ajst-3255	253	13	the	the	DET
ajst-3255	253	14	world	world	NOUN
ajst-3255	253	15	’s	’s	PART
ajst-3255	253	16	first	first	ADJ
ajst-3255	253	17	space	space	NOUN
ajst-3255	253	18	validation	validation	NOUN
ajst-3255	253	19	of	of	ADP
ajst-3255	253	20	xnav	xnav	PROPN
ajst-3255	253	21	.	.	PUNCT
ajst-3255	254	1	chinese	chinese	ADJ
ajst-3255	254	2	journal	journal	PROPN
ajst-3255	254	3	of	of	ADP
ajst-3255	254	4	space	space	NOUN
ajst-3255	254	5	science	science	NOUN
ajst-3255	254	6	,	,	PUNCT
ajst-3255	254	7	38	38	NUM
ajst-3255	254	8	:	:	SYM
ajst-3255	254	9	277	277	NUM
ajst-3255	254	10	-	-	SYM
ajst-3255	254	11	278	278	NUM
ajst-3255	254	12	.	.	PUNCT
ajst-3255	255	1	[	[	X
ajst-3255	255	2	37	37	NUM
ajst-3255	255	3	]	]	PUNCT
ajst-3255	255	4	shuai	shuai	PROPN
ajst-3255	255	5	p	p	X
ajst-3255	255	6	,	,	PUNCT
ajst-3255	255	7	chen	chen	PROPN
ajst-3255	255	8	s	s	PROPN
ajst-3255	255	9	l	l	PROPN
ajst-3255	255	10	,	,	PUNCT
ajst-3255	255	11	wu	wu	PROPN
ajst-3255	255	12	y	y	PROPN
ajst-3255	255	13	f	f	PROPN
ajst-3255	255	14	,	,	PUNCT
ajst-3255	255	15	et	et	PROPN
ajst-3255	255	16	al	al	PROPN
ajst-3255	255	17	.	.	PUNCT
ajst-3255	255	18	(	(	PUNCT
ajst-3255	255	19	2007	2007	NUM
ajst-3255	255	20	)	)	PUNCT
ajst-3255	255	21	advance	advance	NOUN
ajst-3255	255	22	in	in	ADP
ajst-3255	255	23	x	x	ADJ
ajst-3255	255	24	-	-	NOUN
ajst-3255	255	25	ray	ray	NOUN
ajst-3255	255	26	pulsar	pulsar	NOUN
ajst-3255	255	27	navigation	navigation	NOUN
ajst-3255	255	28	technology	technology	PROPN
ajst-3255	255	29	.	.	PUNCT
ajst-3255	256	1	chin	chin	PROPN
ajst-3255	256	2	.	.	PUNCT
ajst-3255	257	1	j.	j.	PROPN
ajst-3255	257	2	space	space	PROPN
ajst-3255	257	3	sci	sci	PROPN
ajst-3255	257	4	.	.	PROPN
ajst-3255	257	5	,	,	PUNCT
ajst-3255	257	6	27	27	NUM
ajst-3255	257	7	:	:	SYM
ajst-3255	257	8	169	169	NUM
ajst-3255	257	9	-	-	SYM
ajst-3255	257	10	176	176	NUM
ajst-3255	257	11	.	.	PUNCT
ajst-3255	258	1	[	[	X
ajst-3255	258	2	38	38	NUM
ajst-3255	258	3	]	]	X
ajst-3255	258	4	zheng	zheng	PROPN
ajst-3255	258	5	s	s	PROPN
ajst-3255	258	6	j	j	PROPN
ajst-3255	258	7	,	,	PUNCT
ajst-3255	258	8	ge	ge	PROPN
ajst-3255	258	9	m	m	PROPN
ajst-3255	258	10	y	y	PROPN
ajst-3255	258	11	,	,	PUNCT
ajst-3255	258	12	han	han	PROPN
ajst-3255	258	13	d	d	PROPN
ajst-3255	258	14	w	w	PROPN
ajst-3255	258	15	,	,	PUNCT
ajst-3255	258	16	et	et	PROPN
ajst-3255	258	17	al	al	PROPN
ajst-3255	258	18	.	.	PROPN
ajst-3255	258	19	(	(	PUNCT
ajst-3255	258	20	2017	2017	NUM
ajst-3255	258	21	)	)	PUNCT
ajst-3255	258	22	test	test	NOUN
ajst-3255	258	23	of	of	ADP
ajst-3255	258	24	pulsar	pulsar	PROPN
ajst-3255	258	25	navigation	navigation	NOUN
ajst-3255	258	26	with	with	ADP
ajst-3255	258	27	polar	polar	ADJ
ajst-3255	258	28	on	on	ADP
ajst-3255	258	29	tg-2	tg-2	NUM
ajst-3255	258	30	space	space	NOUN
ajst-3255	258	31	station	station	NOUN
ajst-3255	258	32	.	.	PUNCT
ajst-3255	259	1	scientia	scientia	PROPN
ajst-3255	259	2	sinica(physica，mechanica&astronomica	sinica(physica，mechanica&astronomica	PROPN
ajst-3255	259	3	)	)	PUNCT
ajst-3255	259	4	,	,	PUNCT
ajst-3255	259	5	47	47	NUM
ajst-3255	259	6	:	:	SYM
ajst-3255	259	7	1	1	NUM
ajst-3255	259	8	-	-	SYM
ajst-3255	259	9	9	9	NUM
ajst-3255	259	10	.	.	PUNCT
ajst-3255	260	1	[	[	X
ajst-3255	260	2	39	39	NUM
ajst-3255	260	3	]	]	PUNCT
ajst-3255	260	4	zheng	zheng	PROPN
ajst-3255	260	5	s	s	PROPN
ajst-3255	260	6	j	j	PROPN
ajst-3255	260	7	,	,	PUNCT
ajst-3255	260	8	zhang	zhang	PROPN
ajst-3255	260	9	s	s	PROPN
ajst-3255	260	10	n	n	CCONJ
ajst-3255	260	11	,	,	PUNCT
ajst-3255	260	12	lu	lu	PROPN
ajst-3255	260	13	f	f	PROPN
ajst-3255	260	14	j	j	PROPN
ajst-3255	260	15	,	,	PUNCT
ajst-3255	260	16	et	et	PROPN
ajst-3255	260	17	al	al	PROPN
ajst-3255	260	18	.	.	PROPN
ajst-3255	261	1	(	(	PUNCT
ajst-3255	261	2	2019	2019	NUM
ajst-3255	261	3	)	)	PUNCT
ajst-3255	261	4	in	in	ADP
ajst-3255	261	5	-	-	PUNCT
ajst-3255	261	6	orbit	orbit	NOUN
ajst-3255	261	7	demonstration	demonstration	NOUN
ajst-3255	261	8	of	of	ADP
ajst-3255	261	9	x	x	NOUN
ajst-3255	261	10	-	-	NOUN
ajst-3255	261	11	ray	ray	NOUN
ajst-3255	261	12	pulsar	pulsar	NOUN
ajst-3255	261	13	navigation	navigation	NOUN
ajst-3255	261	14	with	with	ADP
ajst-3255	261	15	the	the	DET
ajst-3255	261	16	insighthxmt	insighthxmt	NOUN
ajst-3255	261	17	satellite	satellite	NOUN
ajst-3255	261	18	.	.	PUNCT
ajst-3255	262	1	the	the	DET
ajst-3255	262	2	astrophysical	astrophysical	ADJ
ajst-3255	262	3	journal	journal	PROPN
ajst-3255	262	4	supplement	supplement	NOUN
ajst-3255	262	5	series	series	PROPN
ajst-3255	262	6	,	,	PUNCT
ajst-3255	262	7	244	244	NUM
ajst-3255	262	8	:	:	PUNCT
ajst-3255	262	9	1	1	NUM
ajst-3255	262	10	-	-	SYM
ajst-3255	262	11	18	18	NUM
ajst-3255	262	12	.	.	PUNCT
ajst-3255	263	1	[	[	X
ajst-3255	263	2	40	40	NUM
ajst-3255	263	3	]	]	X
ajst-3255	263	4	zhou	zhou	PROPN
ajst-3255	263	5	x	x	PUNCT
ajst-3255	263	6	k	k	PROPN
ajst-3255	263	7	,	,	PUNCT
ajst-3255	263	8	chen	chen	PROPN
ajst-3255	263	9	z.	z.	PROPN
ajst-3255	263	10	(	(	PUNCT
ajst-3255	263	11	2010	2010	NUM
ajst-3255	263	12	)	)	PUNCT
ajst-3255	263	13	recent	recent	ADJ
ajst-3255	263	14	progress	progress	NOUN
ajst-3255	263	15	of	of	ADP
ajst-3255	263	16	δdor	δdor	NOUN
ajst-3255	263	17	technique	technique	NOUN
ajst-3255	263	18	for	for	ADP
ajst-3255	263	19	deep	deep	ADJ
ajst-3255	263	20	space	space	NOUN
ajst-3255	263	21	navigation	navigation	NOUN
ajst-3255	263	22	and	and	CCONJ
ajst-3255	263	23	positioning	positioning	NOUN
ajst-3255	263	24	.	.	PUNCT
ajst-3255	264	1	gnss	gnss	NOUN
ajst-3255	264	2	world	world	NOUN
ajst-3255	264	3	of	of	ADP
ajst-3255	264	4	china	china	PROPN
ajst-3255	264	5	,	,	PUNCT
ajst-3255	264	6	3	3	NUM
ajst-3255	264	7	:	:	SYM
ajst-3255	264	8	52	52	NUM
ajst-3255	264	9	-	-	SYM
ajst-3255	264	10	57	57	NUM
ajst-3255	264	11	.	.	PUNCT
ajst-3255	265	1	[	[	X
ajst-3255	265	2	41	41	NUM
ajst-3255	265	3	]	]	X
ajst-3255	265	4	huang	huang	PROPN
ajst-3255	265	5	y	y	PROPN
ajst-3255	265	6	,	,	PUNCT
ajst-3255	265	7	hu	hu	PROPN
ajst-3255	265	8	x	x	SYM
ajst-3255	265	9	g	g	PROPN
ajst-3255	265	10	,	,	PUNCT
ajst-3255	265	11	huang	huang	PROPN
ajst-3255	265	12	c	c	PROPN
ajst-3255	265	13	,	,	PUNCT
ajst-3255	265	14	et	et	PROPN
ajst-3255	265	15	al	al	PROPN
ajst-3255	265	16	.	.	PROPN
ajst-3255	265	17	(	(	PUNCT
ajst-3255	265	18	2006	2006	NUM
ajst-3255	265	19	)	)	PUNCT
ajst-3255	265	20	using	use	VERB
ajst-3255	265	21	the	the	DET
ajst-3255	265	22	vlbi	vlbi	PROPN
ajst-3255	265	23	data	datum	NOUN
ajst-3255	265	24	to	to	PART
ajst-3255	265	25	determine	determine	VERB
ajst-3255	265	26	the	the	DET
ajst-3255	265	27	orbit	orbit	NOUN
ajst-3255	265	28	of	of	ADP
ajst-3255	265	29	“	"	PUNCT
ajst-3255	265	30	probe	probe	NOUN
ajst-3255	265	31	1	1	NUM
ajst-3255	265	32	”	"	PUNCT
ajst-3255	265	33	.	.	PUNCT
ajst-3255	266	1	journal	journal	PROPN
ajst-3255	266	2	of	of	ADP
ajst-3255	266	3	astronomy	astronomy	NOUN
ajst-3255	266	4	,	,	PUNCT
ajst-3255	266	5	1	1	NUM
ajst-3255	266	6	:	:	SYM
ajst-3255	266	7	82	82	NUM
ajst-3255	266	8	-	-	SYM
ajst-3255	266	9	92	92	NUM
ajst-3255	266	10	.	.	PUNCT