| 多姿态敏感器测量的信息融合定姿方法研究 |
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| 引用本文： | 王炯琦,周海银,赵德勇,吴翊.多姿态敏感器测量的信息融合定姿方法研究[J].上海航天,2009,26(6):1-7,39. |
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| 作者姓名： | 王炯琦 周海银 赵德勇 吴翊 |
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| 作者单位： | 国防科学技术大学理学院,湖南,长沙,410073 |
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| 基金项目： | 国家自然科学基金，航天支撑技术基金 |
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| 摘 要： | 基于最优融合估计理论,给出并证明了多敏感器组合姿态确定系统状态最优融合估计形式。设计了基于信息分配的多信息融合联合滤波器结构和算法,分析估计性能,讨论了决定联合滤波器融合的性能信息分配因子选择方法,提出了一种基于协方差阵特征值平方分解的动态自适应信息分配因子确定方法。以某卫星多姿态敏感器组合测量为例,推导了卫星姿态确定的误差状态方程和各子系统的量测方程及观测阵。仿真结果表明：采用联合滤波器对多敏感器卫星姿态确定系统进行信息融合能改善定姿精度,有效抑制滤波发散,并提高整个系统的运算与收敛速度。
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| 关 键 词： | 信息融合 联合滤波 信息分配 姿态确定 性能分析 |
Research on Information Fusion Method for Satellite Attitude Determination Based on Multi-Sensor Measurement |
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| WANG Jiong-qi,ZHOU Hai-yin,ZHAO De-yong,WU Yi.Research on Information Fusion Method for Satellite Attitude Determination Based on Multi-Sensor Measurement[J].Aerospace Shanghai,2009,26(6):1-7,39. |
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| Authors: | WANG Jiong-qi ZHOU Hai-yin ZHAO De-yong WU Yi |
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| Institution: | WANG Jiong-qi,ZHOU Hai-yin,ZHAO De-yong,WU Yi(College of Science,NUDT,Changsha Hunan 410073,China) |
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| Abstract: | Based on optimal fusion estimation,the expression of state optimal fusion estimation in satellite multi-sensor attitude systems was given and proved in this paper.The structure and algorithm of federal Kalamn filter(FKF) for multi-information fusion based on information allocation principle were designed,and the estimation performance was also analyzed.The determination method of the information allocation factor which would affect the performance of the FKF was discussed.The self-adaptively determination m... |
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| Keywords: | Information fusion Federal Kalman filter Information allocation Attitude determination Performance analysis |
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