Precise positioning with current multi-constellation Global Navigation Satellite Systems: GPS, GLONASS, Galileo and BeiDou
作者： Xingxing Li , Xiaohong Zhang , Xiaodong Ren , Mathias Fritsche , Jens Wickert
DOI: 10.1038/SREP08328
关键词:
摘要: The world of satellite navigation is undergoing dramatic changes with the rapid development multi-constellation Global Navigation Satellite Systems (GNSSs). At moment more than 70 satellites are already in view, and about 120 will be available once all four systems (BeiDou + Galileo GLONASS GPS) fully deployed next few years. This bring great opportunities challenges for both scientific engineering applications. In this paper we develop a four-system positioning model to make full use observations from different GNSSs. significant improvement visibility, spatial geometry, dilution precision, convergence, accuracy, continuity reliability that combining utilization multi-GNSS brings precise carefully analyzed evaluated, especially constrained environments.
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