中国科技核心期刊

中文核心期刊

CSCD来源期刊

空间控制技术与应用

• 论文与报告 • 上一篇    下一篇

鲁棒滤波技术在脉冲星导航中的应用

熊凯1,2,魏春岭1,2,刘良栋1,2   

  1. 1.北京控制工程研究所,北京 100190
    2.空间智能控制技术国家级重点实验室,北京 100190
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-12-26 发布日期:2008-12-26

Application of Robust Filtering in Pulsars-Based Navigation

XIONG Kai 1,2, WEI Chunling 1,2, LIU Liangdong 1,2   

  1. 1. Beijing Institute of Control Engineering, Beijing 100190
    2. National Laboratory of Space Intelligent Control, Beijing 100190
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-12-26 Published:2008-12-26

摘要: 提出将鲁棒扩展卡尔曼滤波(REKF)用于增强X射线脉冲星导航系统克服星表误差影响的能力。指出星表误差可以看作模型不确定性的一部分,采用鲁棒滤波技术进行处理。对REKF和传统扩展卡尔曼滤波(EKF)的性能进行对比。仿真结果表明,存在星表误差的情况下,采用REKF算法进行航天器导航,能够获得优于EKF的定位精度。

关键词: 航天器, 自主导航, 脉冲星, 扩展卡尔曼滤波, 鲁棒滤波

Abstract: The robust extended Kalman filter (REKF) is adopted to overcome the unfavorable effect of the pulsar’s position error on the pulsar’s navigation system in this paper. It is shown that the pulsar’s position error can be seen as model uncertainty, and the effect of the uncertainty can be reduced by using the robust filtering technique. The performance of the REKF is illustrated in comparison with the standard EKF. Numerical simulation shows that the REKF is more accurate than the EKF for spacecraft navigation in the presence of pulsar’s position error.

Key words: spacecraft, autonomous navigation, pulsar, extended Kalman filter, robust filter

中图分类号: 

  • V249.32