空间非合作目标双行轨道根数快速生成算法

刘光明; 张志; 车万方

doi:10.11728/cjss2014.03.319

空间非合作目标双行轨道根数快速生成算法

doi: 10.11728/cjss2014.03.319

1.
北京复杂航空系统仿真重点实验室北京 100076
2.
国防科技大学航天科学与工程学院长沙 410073

基金项目: 航天科技创新基金项目资助（CASC201101）

详细信息

通讯作者:
刘光明,E-mail:neileva@163.com

中图分类号: V474.2
计量
- 文章访问数: 1066
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- 被引次数: 0
出版历程
- 收稿日期: 2013-07-21
- 修回日期: 2013-11-04
- 刊出日期: 2014-05-15

Fast Fitting Algorithm of Non-cooperative Space Object’s TLE Parameters

1.
Key Lab of Complex Aviation System Simulation, Beijing 100076
2.
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073

摘要

摘要: 针对空间目标TLE拟合过程中可能出现的奇点问题，提出了基于无奇异变换的空间目标双行轨道根数（TLE）生成算法. 为提高观测平台对空间目标状态估计效率，提出带有自适应遗忘因子的非线性最小二乘递推算法，利用最速下降法在线修正遗忘因子，使得估计值有较快的跟踪速度和较小的稳态误差. 仿真结果表明，该TLE生成算法的数据处理速度和轨道预报误差满足要求，可用于低轨目标的天基监视.
- 空间目标监视 /
- 双行轨道根数 /
- 无奇异变换 /
- 自适应遗忘因子
Abstract: Due to the singularity existence in the iterative approximation procedure, a new Two-Line Elements (TLE) sampling fitting method is put forward according to the non-singular transformation of orbital elements. To improve the data-processing efficiency of space-based observation platform to the non-cooperative space target, the TLE fitting algorithm introduces the adaptive forgetting factor recursive least-squares algorithm. Numerical simulations indicate that the method can enhance the iterative rapidity of convergence and the accuracy of forecasting orbit, especially for near-Earth space objects. The fitting method can be applied to the tracking system of space-based observation platform to the near-Earth orbit target.
- Space surveillance /
- Two-line elements /
- Non-singular transformation /
- Adaptiveforgetting factor

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参考文献(14)

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