id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-3255	Wang, Shuxuan	A Survey of Several Common Navigation Methods for Spacecrafts	2022	6	.pdf	application/pdf	4230	288	50	Measurement and Control of Low and High Orbit Spacecraft At present, the research of satellite navigation system in low and medium orbit has been relatively mature, such as China’s BeiDou navigation satellite has the ability to provide the measurement and control service for spacecraft[16]. The fourth is the update and optimization of navigation systems’ algorithm.	cache/ajst-3255.pdf	txt/ajst-3255.txt