| 引用本文: | 潘晓刚,刘靖,王炯琦,等.基于压缩估计的单星观测定轨方法.[J].国防科技大学学报,2013,35(5):31-36.[点击复制] |
| PAN Xiaogang,LIU Jing,WANG Jiongqi,et al.The method for orbit determination of single satellite observation based on constringent estimation[J].Journal of National University of Defense Technology,2013,35(5):31-36[点击复制] |
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| 基于压缩估计的单星观测定轨方法 |
| 潘晓刚1,2, 刘靖3, 王炯琦1, 周海银1 |
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(1.国防科技大学 指挥军官基础教育学院，湖南 长沙 410073;2.
2.航天飞行动力学技术重点实验室，北京 100086;3.湖南涉外经济学院，湖南 长沙 410205)
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| 摘要: |
| 分析了单星观测模式下的天基测控系统的可行性，并针对该观测模式下轨道确定中法矩阵的特点，提出了一种基于压缩估计的定轨方法，对法矩阵进行压缩变换，避免了法矩阵奇异造成的误差传递。证明了当满足一定条件时，该压缩方法的估计精度要高于传统的定轨方法。结合单星观测的特殊性，提出了误差传递因子，设计了单星观测下的压缩估计定轨算法。最后以单星模式下的天基测控系统作为仿真背景进行了仿真试验。结果表明，该压缩估计可有效提高单星观测模式下轨道确定的精度。 |
| 关键词: 天基测控 压缩估计 状态转移 误差传递 |
| DOI： |
| 投稿日期：2013-01-12 |
| 基金项目:国家自然科学基金资助项目（61004081）；航天飞行动力学技术重点实验室开放基金资助项目（2012afdl008）；湖南省教育厅科研项目（11C0787） |
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| The method for orbit determination of single satellite observation based on constringent estimation |
| PAN Xiaogang1,2, LIU Jing3, WANG Jiongqi1, ZHOU Haiyin1 |
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(1.College of Basic Education,National University of Defense Technology, Changsha 410073, China;2.
2.Science and Technology on Aerospace Flight Dynamics Laboratory，Beijing 100086, China;3.Hunan International Economics University, Changsha 410205,China)
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| Abstract: |
| Feasibility of Space-based Tracking Telemetry and Command System (TT&C) based on single satellite was analyzed. A new orbit determination method based on constringent estimation was proposed according to the mode of single satellite observation. In the process of the orbit determination, the law matrix was availably transformed by the constringent estimation to restrain error of singularity cased by law matrix. It was proved that the precision of constringent estimation is higher than the traditional method under the given conditions. Then the error transmitting coefficient (ETC) of observation was proposed, on the basis of the special characteristics of the single satellite observation, and the algorithm of orbit determination was designed. Finally the new method of constringent estimation was proved to be able to improve the precision of orbit determination in the mode of single satellite observation. |
| Keywords: space based tracking telemetry and command shrunken estimation state transform error transmitting |
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