| 一种GPS整周模糊度单历元解算方法 |
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| 引用本文： | 祝会忠,高星伟,秘金钟,李明.一种GPS整周模糊度单历元解算方法[J].测绘科学,2011,36(4):9-11. |
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| 作者姓名： | 祝会忠 高星伟 秘金钟 李明 |
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| 作者单位： | 1. 武汉大学卫星导航定位技术研究中心,武汉,430079
2. 中国测绘科学研究院,北京,100039 |
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| 基金项目： | 国家自然科学基金，国家973计划资助项目，国家863计划资助项目，国家863计划资助项目，高等学校学科创新引智计划资助项目 |
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| 摘 要： | 仅利用单历元的载波相位观测值进行整周模糊度解算,观测方程秩亏,给单历元模糊度解算带来很大困难.因此,本文提出一种单历元确定GPS整周模糊度的方法.利用单历元测码伪距观测值和双频载波相位观测值组成双差观测方程,根据方差矩阵对宽巷模糊度进行分组,采用基于LABMDA方法的逐步解算方法来确定双差相位观测值的宽巷模糊度.确定宽...
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| 关 键 词： | GPS整周模糊度 单历元解算 宽巷模糊度 LAMBDA 分组搜索 |
An algorithm of GPS ambiguity resolution on single-epoch |
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| ZHU Hui-zhong,GAO Xing-wei,BEI Jin-zhong,LI Ming.An algorithm of GPS ambiguity resolution on single-epoch[J].Science of Surveying and Mapping,2011,36(4):9-11. |
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| Authors: | ZHU Hui-zhong GAO Xing-wei BEI Jin-zhong LI Ming |
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| Institution: | ②(①Wuhan University Research Center of GNSS,Wuhan 430079,China;②Chinese Academy of Surveying and Mapping,Beijing 100039,China) |
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| Abstract: | The observation equation is rank defect if only the single-epoch carrier phase observation is used to fix integer ambiguity,it is difficult for ambiguity resolution on single-epoch.Therefore,one method of GPS ambiguity resolution on single-epoch was presented in this paper.Single-epoch data of code pseudorange observations and phase observations were used to form observation equations.The wide-lane ambiguity was divided into groups by variance matrix,then using LAMBDA method to fix wide-lane ambiguity gradually.When wide-lane ambiguity was fixed,the L1/L2 double-difference ambiguity could be resolved precisely by utilizing wide-lane ambiguity and phase observation.The results illuminated that this method could guarantee the high efficiency and success rate of GPS ambiguity resolution on single-epoch. |
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| Keywords: | GPS ambiguity resolution on single-epoch wide-lane ambiguity LAMBDA searching by group |
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