id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-30194	Yang, Yifan; Luo, Yanmin	Application of Square-Root Information Kalman Filtering to Combined Navigation Systems	2025	5	.pdf	application/pdf	3554	190	47	For example, global navigation satellite systems rely on external signals and are susceptible to occlusion or interference, while inertial navigation systems, though autonomous, accumulate errors over time[1]. The main errors in satellite navigation systems are clock bias and clock drift.	cache/ajst-30194.pdf	txt/ajst-30194.txt