中国空间科学技术

中国空间科学技术

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测量带有常值偏差时卫星自主定轨系统可观性分析

张春青;刘良栋;李勇;   

  1. 北京控制工程研究所,北京控制工程研究所,中国空间技术研究院研究发展中心 北京100080,北京100080,北京100094
  • 发布日期:2006-12-25

Observability Analysis for Biased Satellites Autonomous Orbit Determination Systems

Zhang Chunqing Liu Liangdong(Beijing Institute of Control Engineering,Beijing 100080)Li Yong(Research & Development Center,China Academy of Space Technology,Beijing 100094)   

  • Online:2006-12-25
  • Supported by:
    国家自然科学基金资助项目(编号:90405017)

被引次数

22

摘要： 考虑测量带有常值偏差时卫星自主定轨系统的状态观测和常值偏差估计问题,将观测常值偏差扩增为状态后进行卡尔曼滤波是解决这一问题的一个途径。为使卡尔曼滤波稳定,就必须分析系统的随机可观测性。文章利用线性时变系统的可观性理论对测量带有常值偏差时卫星自主定轨系统的可观性进行了分析,数值仿真结果显示了所得理论的正确性。

关键词: 自主控制, 误差估计, 轨道参数, 动力学, 模型, 人造卫星

Abstract: Concerning with the autonomous orbit determination for satellites with constant in the measurements of navigation sensors,it is a common approach to augment the system states with biased states and use Kalman filter,if the augmented system is completely observable.The(observability) of the proposed system was discussed using standard results of linear time-variant(systems) theory,and two very useful analysis results were presented.The results was demonstrated by numerical simulation.