| 自旋卫星姿态确定和系统偏差估计 |
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| 引用本文： | 陈义庆,王旭东.自旋卫星姿态确定和系统偏差估计[J].宇航学报,1987(1). |
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| 作者姓名： | 陈义庆 王旭东 |
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| 作者单位： | 北京控制工程研究所
(陈义庆)，北京控制工程研究所(王旭东) |
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| 摘 要： | 以最小二乘为指标,应用Powell直接寻优算法,对近地轨道自旋卫星姿态确定数据进行加工处理,得出了某些系统偏差的估计值,然后再用Kalman滤波器进行滤波估计。实践证明,将此法用于可观性较弱的系统,可显著改善仅用Kalman滤波器所得的结果。
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| 关 键 词： | 自旋稳定卫星 卫星姿态控制 卡尔曼滤波 系统误差 估计 |
SPIN SATELLITE ATTITUDE DETERMINATION AND SYSTEM BIAS ESTIMATION |
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| Chen Yiqing Wang Xudong.SPIN SATELLITE ATTITUDE DETERMINATION AND SYSTEM BIAS ESTIMATION[J].Journal of Astronautics,1987(1). |
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| Authors: | Chen Yiqing Wang Xudong |
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| Institution: | Beijing Institute of control Engineering |
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| Abstract: | This paper presents a processing method of attitude determination data and its results for a low orbit spin-stabilized satellite.First, the least squre and Powell optimization technique are applied to estimate some system biases. Then Kalman filter is used for precisely estimating the attitude of satellite.Numerical analysis shows that this method considerably improve the results obtained by extended Kalman filter which considers system biases as additional state variables.This approach works well in practice, and could be used for system with weak observability. |
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| Keywords: | Spin stabilized satellite Satellite attitude control Kalman filtering systematic error Estimate |
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