| 基于相对定位模型的GPS-Galileo组合定位研究 |
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| 引用本文： | 王潜心,陈正阳,唐利民.基于相对定位模型的GPS-Galileo组合定位研究[J].测绘科学,2009,34(1). |
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| 作者姓名： | 王潜心 陈正阳 唐利民 |
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| 作者单位： | 中南大学信息物理工程学院,长沙,410083 |
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| 基金项目： | 中南大学博士学位论文创新选题项目 |
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| 摘 要： | 随着Galileo系统的逐步建成并投入使用,以及GPS的现代化,如何利用双系统多频率的组合观测值进行高精度定位已成为目前业内关注的热点问题。本文从传统的GPS双差观测方程出发,推导出了GPS-Galileo组合定位的数学模型,提出了其组合定位中的多频周跳探测方法和整周模糊度快速求解的方法。最后利用模拟软件对GPS、Galileo以及GPS-Galileo三种定位方式对不同长度基线的解算精度进行了比较分析,实验结果证明了所提方法的正确性和可行性。
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| 关 键 词： | 相对定位 GPS-Galileo 周跳探测 模糊度求解 |
Study on GPS-Galileo combined positioning based on relative positioning model |
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| WANG Qian-xin,CHEN Zheng-yang,TANG Li-min.Study on GPS-Galileo combined positioning based on relative positioning model[J].Science of Surveying and Mapping,2009,34(1). |
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| Authors: | WANG Qian-xin CHEN Zheng-yang TANG Li-min |
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| Abstract: | With the development of Galileo and the modernizing of GPS,it has become a hotspot in the GNSS field to realize high precision positioning with combined observations of GPS-Galileo multi-frequency.Based on the traditional GPS double differenced observation equations,a mathematic model of GPS-Galileo combined positioning is deduced in this paper.And some new methods of cycle-sli Pdetection and ambiguity resolution are presented.Some different distance baselines are tested in the simulation experiments,respectively using GPS,Galileo and GPS-Galileo.And the precision of results are analyzed in detail.The results indicate that present methods are right and feasible. |
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| Keywords: | GPS-Galileo |
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