| 非差导航卫星实时/事后精密钟差估计 |
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| 引用本文： | 李星星, 徐运, 王磊. 非差导航卫星实时/事后精密钟差估计[J]. 武汉大学学报 ( 信息科学版), 2010, 35(6): 661-664. |
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| 作者姓名： | 李星星 徐运 王磊 |
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| 作者单位： | 1武汉大学测绘学院,武汉市珞喻路129号,430079 |
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| 基金项目： | 国家自然科学基金资助项目(40874017)；国家创新研究群体科学基金资助项目(40721001)；武汉市晨光计划资助项目(200850731375) |
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| 摘 要： | 研究了导航卫星精密钟差的估计算法,实现了基于非差载波相位观测值的实时和事后精密卫星钟差的解算,并与IGS分析中心提供的精密钟差产品进行了比较。结果表明,采用自编软件解算的事后精密卫星钟差与IGS最终精密钟差产品具有较好的一致性,其互差仅为0.05ns左右;实时估计结果与CODE提供的事后钟差产品符合较好,二者差异为0.1ns左右。
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| 关 键 词： | 非差 精密钟差估计 实时 事后 |
| 收稿时间： | 2010-04-23 |
| 修稿时间： | 2010-04-23 |
Undifferenced Precise Satellite Clock Error Estimation and Precision Analysis |
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| LI Xingxing, XU Yun, WANG Lei. Undifferenced Precise Satellite Clock Error Estimation and Precision Analysis[J]. Geomatics and Information Science of Wuhan University, 2010, 35(6): 661-664. |
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| Authors: | LI Xingxing XU Yun WANG Lei |
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| Affiliation: | 1School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430039,China |
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| Abstract: | We studied the precise satellites clock error estimation algorithm for navigation satellites.The computation of precise satellites clock error based on the non-difference phase was realized and the results were compared with the products provided by IGS analysis centers.The results show that the post precise satellites clock products calculated by the software are equal to those provided by IGS Final,CODE,JPL and MIT.Their bias are less than 0.1 ns and the precision is equal to the precision of IGS Final.In addition,the real-time precise satellite clock error is also estimated with a high accuracy about 0.1 ns compared with that of CODE. |
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| Keywords: | zero-differenced precise satellite clock error estimation real-time post |
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