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首页> 外文期刊>The Journal of Navigation >Tightly Combined BeiDou B2 and Galileo E5b Signals for Precise Relative Positioning
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Tightly Combined BeiDou B2 and Galileo E5b Signals for Precise Relative Positioning

机译：北斗B2和伽利略E5b信号紧密结合，可进行精确的相对定位

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摘要

In precise relative positioning applications, an effective approach to improve the interoperability of GNSS systems is the tightly combining or inter-system double-differencing of observations from the common frequencies that are shared by different constellations. As the BeiDou satellites are currently transmitting a B2 signal at 1207.14 MHz that is identical to the Galileo E5b signal, the inter-system double-differenced observations can also be created between observations from both systems at that particular frequency. In this paper, we will focus on the instantaneous ambiguity resolution performance analysis of tightly combining BeiDou B2 and Galileo E5b observations. The size and stability of phase and code Differential Inter-System Biases (DISBs) between BeiDou B2 and Galileo E5b signals are first investigated, in which the new BeiDou and Galileo satellites launched recently will also be included. Then, first results of the Tightly Combined Model (TCM) with a priori corrected DISBs (TCM_C) are evaluated in comparison to the Loosely Combined Model (LCM) and tightly combined model with unknown DISBs (TCM_F) in an instantaneous approach. It is demonstrated that the instantaneous integer ambiguity resolution performance can be improved using the TCM_C with respect to LCM and TCM_F.
机译：在精确的相对定位应用中，一种提高GNSS系统互操作性的有效方法是将观测结果与不同星座共享的公共频率紧密结合或在系统之间进行双差分。由于北斗卫星目前正在以1207.14 MHz的频率发射B2信号，该信号与伽利略E5b信号相同，因此还可以在该特定频率的两个系统的观测值之间创建系统间双差观测值。在本文中，我们将专注于将北斗B2和伽利略E5b观测结果紧密结合在一起的瞬时歧义分辨率性能分析。首先研究北斗B2和伽利略E5b信号之间的相位和代码差分系统间偏差（DISB）的大小和稳定性，其中还将包括最近发射的新北斗和伽利略卫星。然后，采用瞬时方法，与具有未知DISB的松散组合模型（LCM）和具有未知DISB的紧密组合模型（TCM_F）相比，评估了具有先验校正后的DISB（TCM_C）的紧密组合模型（TCM）的最初结果。已经证明，相对于LCM和TCM_F，使用TCM_C可以提高瞬时整数歧义分辨率的性能。

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  • 来源
    《The Journal of Navigation》 |2017年第6期|1253-1266|共14页
  • 作者

    Wu Mingkui; Zhang Xiaohong; Liu Wanke; Ni Shaojie; Yu Shun;

  • 作者单位

    Wuhan Univ, Sch Geodesy & Geomat, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China;

    Wuhan Univ, Sch Geodesy & Geomat, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China|Collaborat Innovat Ctr Geospatial Technol, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China|Wuhan Univ, Key Lab Geospace Environm & Geodesy, Minist Educ, Wuhan 430079, Hubei, Peoples R China;

    Wuhan Univ, Sch Geodesy & Geomat, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China|Collaborat Innovat Ctr Geospatial Technol, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China|Wuhan Univ, Key Lab Geospace Environm & Geodesy, Minist Educ, Wuhan 430079, Hubei, Peoples R China;

    Natl Univ Def Technol, Satellite Nav Engn Res Ctr, 190 Deya Rd, Changsha 410073, Hunan, Peoples R China;

    Wuhan Univ, Sch Geodesy & Geomat, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    BeiDou (BDS); Galileo; Tightly combined; Differential Inter-System Bias (DISB); Relative positioning;

    机译：北斗（BDS）;伽利略（Galileo）;紧密结合;系统间差异（DISB）;相对定位;

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