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一种高动态条件下惯性星光组合定姿方法

韩礼 张力军 蔡洪 张士峰

韩礼, 张力军, 蔡洪, 等 . 一种高动态条件下惯性星光组合定姿方法[J]. 北京航空航天大学学报, 2014, 40(12): 1767-1772. doi: 10.13700/j.bh.1001-5965.2013.0756
引用本文: 韩礼, 张力军, 蔡洪, 等 . 一种高动态条件下惯性星光组合定姿方法[J]. 北京航空航天大学学报, 2014, 40(12): 1767-1772. doi: 10.13700/j.bh.1001-5965.2013.0756
Han Li, Zhang Lijun, Cai Hong, et al. A method of stellar-inertial attitude determination under high dynamic condition[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(12): 1767-1772. doi: 10.13700/j.bh.1001-5965.2013.0756(in Chinese)
Citation: Han Li, Zhang Lijun, Cai Hong, et al. A method of stellar-inertial attitude determination under high dynamic condition[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(12): 1767-1772. doi: 10.13700/j.bh.1001-5965.2013.0756(in Chinese)

一种高动态条件下惯性星光组合定姿方法

doi: 10.13700/j.bh.1001-5965.2013.0756
基金项目: 航天科技创新基金资助项目(CASC201105)
详细信息
  • 中图分类号: V448.2

A method of stellar-inertial attitude determination under high dynamic condition

  • 摘要: 针对高动态条件下星图拖尾导致惯性星光组合定姿精度下降甚至无法定姿的问题,提出了一种基于乘性扩展卡尔曼滤波的惯性星光深度组合姿态确定方法.利用星敏感器观测信息修正姿态误差,补偿陀螺漂移,并建立了陀螺输出的角度变化量与星图像移的关系,利用陀螺输出信息估计星图拖尾的模糊参数,采用维纳滤波复原方法对产生拖尾的星图进行复原以提高星图信噪比和观测精度.仿真结果表明该方法可以有效提高星像质心提取精度和星图识别率,对初始姿态误差修正更快,且不存在星图误匹配的情况,保证了惯性星光组合定姿方法在高动态条件下仍能保持较高的精度.

     

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出版历程
  • 收稿日期:  2014-01-10
  • 网络出版日期:  2014-12-20

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