| 基于MRPs无陀螺卫星姿态确定的抗差估计算法 |
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| 引用本文： | 牟忠凯,隋立芬,曹轶之.基于MRPs无陀螺卫星姿态确定的抗差估计算法[J].大地测量与地球动力学,2010,30(1):104-108. |
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| 作者姓名： | 牟忠凯 隋立芬 曹轶之 |
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| 作者单位： | 1. 解放军信息工程大学测绘学院,郑州,450052;72946部队,淄博,255000
2. 解放军信息工程大学测绘学院,郑州,450052 |
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| 基金项目： | 国家自然科学基金(40974010,40971306);;解放军信息工程大学测绘学院研究生创新创优基金 |
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| 摘 要： | 针对精确航天器姿态问题，采用修正罗德里格参数(MRPs)表示姿态，用动力学方程进行角速率的传播，分别基于等价协方差和观测残差统计特性的协方差调整方法，实现UKF算法的抗差效果，并通过仿真验证该方法的有效性。仿真结果表明：在含有粗差的情况下，两种抗差UKF算法均能得到稳定的状态估计值，而第二种方法计算效率更高。
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| 关 键 词： | face=Verdana>姿态确定 抗差UKF 修正罗德里格参数(MRPs) 等价协方差矩阵 粗差 |
ROBUST ESTIMATION ALGORITHM FOR MRPs SATELLITE ALTITUDE DETERMINATION WITH WITHOUT GYRO |
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| Mou Zhongkai,Sui Lifen,Cao Yizhi.ROBUST ESTIMATION ALGORITHM FOR MRPs SATELLITE ALTITUDE DETERMINATION WITH WITHOUT GYRO[J].Journal of Geodesy and Geodynamics,2010,30(1):104-108. |
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| Authors: | Mou Zhongkai Sui Lifen Cao Yizhi |
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| Abstract: | By using MRPs and dynamic equation for attitude representation and the propagation of angular velocity,UKF algorithm is applied for spacecraft attitude estimation in which measurement covariance is tuning in real time based on equal covariance and statistical properties of measurement error respectively.The two methods are validated by a simulated experiment which shows that the state estimation would become more stable for two robust UKF,and the latter one is more efficient. |
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| Keywords: | attitude determination robust UKF MRPs(Modified Rodrigues Parameters) equivalent covariance matrix gross error |
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