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UKF 容错滤波在脉冲星组合导航中的应用
Fault tolerant UKF application in pulsar-based integrated navigation
查看参考文献9篇
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文摘
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针对X射线脉冲星组合导航系统中测量野值导致的导航精度下降问题,利用基于残差正交性的Unscented Kalman Filter (UKF)容错滤波方法进行野值修正。在深空巡航段,采用基于X射线脉冲星和太阳观测的组合导航方式,用X射线探测器测量脉冲星光子到达时间,利用太阳敏感器测量太阳视线方向矢量,并利用联邦滤波结构进行信息融合。仿真结果表明,基于UKF的容错滤波算法在脉冲星组合导航系统的应用中,能够对野值进行实时修正,避免了导航精度下降,提高了系统的鲁棒性和工程实用价值。 |
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其他语种文摘
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In view of the low navigation accuracy caused by the outliers in the pulsar-based integrated navigation system, a residual orthogonal unscented Kalman filter (ROUKF) was employed to correct the outliers. During interplanetary cruise, an integrated navigation was applied which included X-ray pulsar navigation system and sun observation navigation system. The X-ray detector was used to record the arrival times of pulsar photons. The sun sensor was used to measure the sun line-of-sight vector. The information fusion was conducted by the federated filter. Simulation results demonstrate that the ROUKF in the pulsar-based integrated navigation system can effectively correct the outliers. The proposed method improves the robust capability and the application value of the pulsar-based integrated navigation system. |
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来源
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中国惯性技术学报
,2014,22(6):759-762 【核心库】
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DOI
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10.13695/j.cnki.12-1222/o3.2014.06.011
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关键词
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脉冲星
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太阳敏感器
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UKF 滤波
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野值检测
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容错滤波
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地址
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1.
北京理工大学机电学院, 北京, 100081
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中国科学院空间科学与应用研究中心, 北京, 100190
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1005-6734 |
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学科
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航天(宇宙航行) |
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基金
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空间科学预先研究项目
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文献收藏号
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CSCD:5327444
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参考文献 共
9
共1页
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