基于压缩估计的单星观测定轨方法  

The method for orbit determination of single satellite observation based on constringent estimation

作　　者：潘晓刚[1,2] 刘靖[3] 王炯琦[1] 周海银[1] 

机构地区：[1]国防科技大学指挥军官基础教育学院,湖南长沙410073 [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

出　　处：《国防科技大学学报》2013年第5期31-36,共6页Journal of National University of Defense Technology

基　　金：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)

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。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.

关 键 词：天基测控 压缩估计 状态转移 误差传递 

分 类 号：V412.41[航空宇航科学与技术—航空宇航推进理论与工程]