| GPS姿态测量的载波相位整周模糊度快速解算 |
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| 引用本文： | 郑庆晖,张育林.GPS姿态测量的载波相位整周模糊度快速解算[J].航空学报,2002,23(3):272-275. |
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| 作者姓名： | 郑庆晖 张育林 |
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| 作者单位： | 国防科技大学,航天与材料工程学院,湖南,长沙,410073 |
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| 基金项目： | 国家 8 63基金资助项目 (863 -2 -5 -1-1.2 ) |
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| 摘 要： | 根据 ARCE方法可以将模糊度搜索空间从所观测到的 m颗卫星的 m -1维降为 3维独立整周模糊度搜索空间,结合整数高斯变换及基线长度约束减小模糊度搜索空间,利用 Cholesky分解提高模糊度搜索效率,实验结果证明该方法能够快速解算整周模糊度适于实时姿态确定等应用。
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| 关 键 词： | 载波相位 整周模糊度 姿态确定 GPS Cholesky分解 |
| 文章编号： | 1000-6893(2002)03-0272-04 |
| 修稿时间： | 2001年8月2日 |
OTF AMBIGUITY RESOLUTION IN GPS BASED ATTITUDE DETERMINATION |
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| ZHENG Qing hui,ZHANG Yu lin.OTF AMBIGUITY RESOLUTION IN GPS BASED ATTITUDE DETERMINATION[J].Acta Aeronautica et Astronautica Sinica,2002,23(3):272-275. |
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| Authors: | ZHENG Qing hui ZHANG Yu lin |
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| Institution: | Institute of Astronautics and Material, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | From ARCE concept the ambiguity search space can be decreased from m-1 dimensions to three dimensions in the condition that m satellites were observed, then the integer Gaussian transformation was used to reduce the ambiguity search space, and all the information like the length of the baseline was also used to decrease the search space. Finally, Cholesky factorization could make the process of searching more efficient. Experiment results show that this method can be used in attitude determination. |
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| Keywords: | carrier phase integer ambiguity attitude determination GPS Cholesky factorization |
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