LEO Enhanced Global Navigation Satellite System (LeGNSS): progress, opportunities, and challenges - Ge, Haibo; Li, Bofeng; Jia, Song; Nie, Liangwei; Wu, Tianhao; Yang, Zhe; Shang, Jingzhe; Zheng, Yanning; Ge, Maorong (Geo-spatial information science, 2022)
Keywords: BeiDou Navigation Satellite System; Convergence; convergence time; Earth orbits; Earth rotation; global ionosphere modeling; Global navigation satellite system; Ionosphere; LEO Enhanced Global Navigation Satellite System (LeGNSS); Low earth orbits; Optimization; Orbit determination; Parameter estimation; Precise Point Positioning (PPP); Satellite constellations; Satellite navigation systems; Satellites