Impact analysis of GPS/BDS combined positioning on ambiguity search region for short baseline

被引：0

作者：

Sui X. ^{[1
,2
]}

Shi C. ^{[1
]}

Li M. ^{[1
]}

Xu Z. ^{[2
]}

Xu A. ^{[2
]}

机构：

[1] Research Center of GNSS, Wuhan University, Wuhan

[2] School of Geomatic, Liaoning Technical University, Fuxin

来源：

Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University | 2016年 / 41卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Ambiguity resolution; BDS; Combined positioning; GPS; Search region;

D O I：

10.13203/j.whugis20150479

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ambiguity fixing is the key to GNSS high-precision dynamic positioning. In order to analyze the performance of a GPS/BDS combined system on ambiguity search efficiency and the success rate of ambiguity fixing on a short baseline, this paper proposes an ambiguity search region correlation method based on the square roots of the eigenvalues of the variance/covariance matrix of ambiguity. This method compares and analyzes the ambiguity search region in a single system GPS, a single system BDS and combined GPS/BDS system, respectively. Experimental results show that the GPS and BDS combination influences the variance/covariance matrix of each single system, and reduces the search region of each single system. Furthermore, the statistical results show that the combined GPS/BDS system can improve the success rate of ambiguity fixing and the ambiguity search efficiency significantly within single- and dual-frequency observations. © 2016, Research and Development Office of Wuhan University. All right reserved.

引用

页码：1372 / 1378

页数：6

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