伽利略卫星导航系统信号质量及定位性能分析

周星宇; 陈华; 安向东

doi:doi:10.13442/j.gnss.1008-9268.2018.01.004

伽利略卫星导航系统信号质量及定位性能分析

doi: doi:10.13442/j.gnss.1008-9268.2018.01.004

1.武汉大学卫星导航定位技术研究中心,湖北武汉 430079
2.
武汉大学测绘学院,湖北武汉 430079

详细信息

作者简介:
周星宇(1994-),男,硕士研究生,主要从事精密单点定位方向研究。

通讯作者:
周星宇 E-mail: zhouxygps@whu.edu.cn

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出版历程
- 刊出日期: 2018-03-28

Analysis of Galileo Signal Quality and Positioning Performance

GNSS Research Center, Wuhan University, Wuhan 430079, China
2.
School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China

摘要

摘要: 伽利略系统(Galileo)是全球四大卫星导航系统之一,目前已初步具备全球定位能力。研究Galileo的信号质量和双／三频定位性能不仅对Galileo系统应用具有重要价值,对多全球卫星导航系统（GNSS）融合定位也有重要促进作用。在使用基准站网(MGEX)地面跟踪站的基础上,分析了伽利略信号的载噪比、多路径、以及双／三频精密单点定位(PPP)的定位精度。结果表明,Galileo与GPS相比,载噪比E5> E5a≈E5b≈L5>E1≈L1>L2,多路径误差E5
- 伽利略 /
- 载噪比 /
- 多路径误差 /
- 精密单点定位
Abstract: Galileo system is one of GNSS, and it has preliminary obtained global positioning capability. The research of Galileo signal quality and bi／tri-frequency positioning performance not only contributes to Galileo system, but also promotes the fusion positioning of multi GNSS. On the basis of existing MGEX ground tracking stations, this paper focuses on the analysis of Galileo carrier to noise(CNR) ratio, code multipath delay, and the current stage of the precise point positioning (PPP) dual-frequency, triple-frequency static positioning accuracy. The results show that comparing Galileo and GPS, the CNR and multipath delay follow an order of E5> E5a≈ E5b≈L5>E1≈L1>L2 and E5≤E1
- Galileo /
- Carrier to Noise Ratio (CNR) /
- multipath delay /
- Precise Point Positioning(PPP)

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参考文献(19)

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