Precise positioning with current multi-constellation Global Navigation Satellite Systems: GPS, GLONASS, Galileo and BeiDou

被引：243

作者：

Li, Xingxing ^{[1
,2
]}

Zhang, Xiaohong ^{[1
]}

Ren, Xiaodong ^{[1
]}

Fritsche, Mathias ^{[2
]}

Wickert, Jens ^{[2
]}

Schuh, Harald ^{[2
]}

机构：

[1] Wuhan Univ, Sch Geodesy & Geomat, Wuhan 430079, Hubei, Peoples R China

[2] German Res Ctr Geosci GFZ, D-14473 Potsdam, Germany

来源：

SCIENTIFIC REPORTS | 2015年 / 5卷

基金：

中国国家自然科学基金;

关键词：

ORBIT; CLOCK;

D O I：

10.1038/srep08328

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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

引用

页数：14

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