| 1PN近似下脉冲星导航的观测方程及精度分析 |
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| 引用本文： | 任红飞,魏子卿,翟振和,吴富梅.1PN近似下脉冲星导航的观测方程及精度分析[J].测绘学报,2012,41(1):41-0. |
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| 作者姓名： | 任红飞 魏子卿 翟振和 吴富梅 |
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| 作者单位： | 1. 信息工程大学测绘学院，西安测绘研究所;2. 西安测绘研究所;3. 信息工程大学测绘学院;西安测绘研究所; |
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| 摘 要： | 完整推导1PN度规形式下脉冲到达时间方程与脉冲星导航的观测方程。分析导航观测中的相对论影响；给出观测方程的级数展开形式，在此基础上分析脉冲星历表参数对观测时间的影响；讨论行星星历误差对观测时间的影响；推导星体扁率引起的测量时延表达式，分析不同星体扁率引起的时延量级。
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| 关 键 词： | 脉冲星导航 观测方程 后牛顿近似 引力时延 |
| 收稿时间： | 2011-04-08 |
| 修稿时间： | 2011-06-02 |
The Timing Equation of Pulsar Navigation in 1PN Approximation and Its Accuracy Analysis |
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| REN Hongfei,WEI Ziqing,ZHAI Zhenhe,WU Fumei.The Timing Equation of Pulsar Navigation in 1PN Approximation and Its Accuracy Analysis[J].Acta Geodaetica et Cartographica Sinica,2012,41(1):41-0. |
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| Authors: | REN Hongfei WEI Ziqing ZHAI Zhenhe WU Fumei |
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| Institution: | 1.Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China;2.Xi’an Research Institute of Surveying and Mapping,Xi’an 710054,China |
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| Abstract: | The time of arrival equation of pulse and the timing equation of pulsar navigation in 1PN approximation is derived.The general relativity effect is analyzed.The binomial expand expression of timing equation is given.The timing error due to the pulsar ephemeris is discussed.In the end,the effects of planet ephemeris error and the flattening of bodies are presented. |
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| Keywords: | pulsar navigation timing equation post-newton approximation time delay of gravity |
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