| 利用信息融合进行月球卫星自主导航 |
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| 引用本文： | 宋敏,袁运斌.利用信息融合进行月球卫星自主导航[J].武汉大学学报(信息科学版),2010(3). |
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| 作者姓名： | 宋敏 袁运斌 |
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| 作者单位： | 中国科学院测量与地球物理研究所;中国科学院研究生院; |
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| 基金项目： | 国家杰出青年科学基金资助项目(40625013); 国家863计划资助项目(2007AA12Z311); 国家自然科学基金资助项目(40890160) |
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| 摘 要： | 研究了绕月卫星自主导航方法,提出了由星敏感器、紫外月球敏感器和测高仪组成的多源信息组合导航方案。将Unscented Kalman滤波(UKF)应用于非线性导航系统,采用信息融合技术设计了相关的联邦滤波算法,实现了系统的信息互补,完成了卫星轨道的最优估计。利用数学仿真对这种导航系统的有效性进行了验证,并与基于扩展Kal man滤波(EKF)的信息融合算法进行了比较。仿真结果表明,所提出的UKF融合算法具有良好的稳定性,可进一步提高导航系统的精度。
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| 关 键 词： | 月球卫星 自主导航 UKF 信息融合 |
Autonomous Navigation for Lunar Satellite Based on Information Fusion |
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| SONG Min, YUAN Yunbin.Autonomous Navigation for Lunar Satellite Based on Information Fusion[J].Geomatics and Information Science of Wuhan University,2010(3). |
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| Authors: | SONG Min YUAN Yunbin |
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| Institution: | SONG Min1,2 YUAN Yunbin1(1 Institute of Geodesy , Geophysics,Chinese Academy of Sciences,340 Xudong Street,Wuhan 430077,China)(2 Graduate School of Chinese Academy of Sciences,A19 Yuquan Road,Beijing 100049,China) |
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| Abstract: | We propose a multi-source information autonomous navigation scheme,which composes of star sensor,ultraviolet moon sensor and the altimeter for satellite around Moon.Unscented Kalman filtering(UKF)is used in nonlinear systems.The optimal orbit of the satellite is determined by a federated Kalman filter which realizes information complement based on a new information fusion algorithm.We also compared with the extend Kalman filtering(EKF)based on information fusion.The effectiveness of the navigation scheme wa... |
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| Keywords: | lunar satellite autonomous navigation UKF information fusion |
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