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含钟差修正的脉冲星和太阳观测组合导航

杨成伟 邓新坪 郑建华 高东

杨成伟, 邓新坪, 郑建华, 等 . 含钟差修正的脉冲星和太阳观测组合导航[J]. 北京航空航天大学学报, 2012, (11): 1469-1473.
引用本文: 杨成伟, 邓新坪, 郑建华, 等 . 含钟差修正的脉冲星和太阳观测组合导航[J]. 北京航空航天大学学报, 2012, (11): 1469-1473.
Yang Chengwei, Deng Xinping, Zheng Jianhua, et al. Integrated navigation based on pulsars and sun observation including clock error correction[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (11): 1469-1473. (in Chinese)
Citation: Yang Chengwei, Deng Xinping, Zheng Jianhua, et al. Integrated navigation based on pulsars and sun observation including clock error correction[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (11): 1469-1473. (in Chinese)

含钟差修正的脉冲星和太阳观测组合导航

基金项目: 空间科学预先研究资助项目(XDA04074300)
详细信息
  • 中图分类号: V448.224

Integrated navigation based on pulsars and sun observation including clock error correction

  • 摘要: 为提高深空探测器巡航段的导航定位精度和钟差修正能力,提出一种利用X射线脉冲星和太阳观测信息的组合导航方法.利用脉冲星导航的脉冲到达时间测量值,同时利用太阳敏感器、分光计分别测量太阳视线矢量和探测器相对于太阳的径向速度,并将星载时钟钟差增广为状态变量,构建组合导航系统,利用基于扩展卡尔曼滤波的UD(Upper triangular matrix-Diagonal matrix)分解信息融合算法进行状态估计.仿真结果表明,该方法能有效解决因钟差漂移引起的导航滤波发散问题,同脉冲星导航相比,该方法提高了定位精度和钟差修正能力.

     

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出版历程
  • 收稿日期:  2011-07-22
  • 刊出日期:  2012-11-30

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