| 利用基准站观测资料确定GPS卫星轨道 |
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| 引用本文： | 王武星,顾国华. 利用基准站观测资料确定GPS卫星轨道[J]. 大地测量与地球动力学, 2003, 23(3): 112-115 |
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| 作者姓名： | 王武星 顾国华 |
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| 作者单位： | 中国地震局分析预报中心,北京,100036 |
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| 基金项目： | 国家重大科学工程“中国地壳运动观测网络”项目 |
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| 摘 要： | 介绍了目前国际上GPS卫星定轨现状、定轨工作原理和计算所采用的方法。利用中国地壳运动观测网络基准站的观测数据，进行自主星历的计算，获得了GPS卫星的轨道信息并进行了结果的精度分析。研究了基准站的选取，讨论了精度较高、计算用时较少的基准站选取方案。由该网络得到的自主星历的精度在0．4m以内。
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| 关 键 词： | 基准站 GPS 卫星轨道 中国地壳运动观测网络 星历 精度 |
| 文章编号： | 1671-5942(2003)03-0112-04 |
| 修稿时间： | 2003-02-25 |
GPS SATELLITE ORBIT DETERMINATION WITH OBSERVATIONAL DATA OF FIDUCIAL STATIONS |
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| Wang Wuxing and Gu Guohua. GPS SATELLITE ORBIT DETERMINATION WITH OBSERVATIONAL DATA OF FIDUCIAL STATIONS[J]. Journal of Geodesy and Geodynamics, 2003, 23(3): 112-115 |
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| Authors: | Wang Wuxing and Gu Guohua |
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| Abstract: | The present international status of GPS satellite orbit determination is briefed,the theory and method for orbit determination are introduced as well.By this method the GPS satellite orbits have been estimated with observational data of the fiducial stations in the Crustal Movement Observation Network of China(CMONOC),then the accuracy of orbit is analyzed.The influence of station distribution on the quality of the estimation and the selection of stations that leads to higher estimation quality and shorter CPU computing time are discussed.The accuracy of the orbit estimated from the network is less than 0.4 m. |
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| Keywords: | CMONOC fiducial station ephemeris accuracy |
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