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

Precise positioning with current multi-constellation Global Navigation Satellite Systems: GPS, GLONASS, Galileo and BeiDou.
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利用当前多星座全球导航卫星系统进行精确定位:GPS、GLONASS、Galileo 和 BeiDou

DOI:
10.1038/srep08328
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发表时间:
2015-02-09
期刊:
影响因子:
4.6
通讯作者:
Schuh H
Schuh H
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Li X;Zhang X;Ren X;Fritsche M;Wickert J;Schuh H

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随着多星座全球导航卫星系统(GNSS)的快速发展,卫星导航领域正在发生巨大的变化。目前,已经有70多颗卫星在考虑中,一旦所有四个系统(北斗+伽利略+格洛纳斯+全球定位系统)在未来几年内完全部署,将有大约120颗卫星可用。这将为科学和工程应用带来巨大的机遇和挑战。在本文中,我们开发了一个四系统定位模型,以充分利用所有可用的观测来自不同的GNSS。详细分析和评价了多GNSS组合应用对卫星可见度、空间几何、精度衰减、收敛性、精度、连续性和可靠性的显著改善,特别是在受限环境下。
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.
DOI: 10.1038/srep02682
发表时间: 2013
期刊: SCIENTIFIC REPORTS
影响因子: 4.6
作者:
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