id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-23602	Dai, Jun	Overview of Beidou 3 Precision Single-point Positioning	2024	6	.pdf	application/pdf	5072	195	42	Decoding PPP corrections from BDS B2b signals using a software-defined receiver: an initial performance evaluation[J]. 2. Introduction to PPP-B2b Signalling PPP Services BDS-3 will mainly provide six types of services, including radio navigation satellite service (RNSS), regional short message communication (RSMC), global short message communication (GSMC), SBAS, international search and rescue (SAR) and PPP services.	cache/ajst-23602.pdf	txt/ajst-23602.txt