基于星敏感器的卫星角速度估计精度分析

doi:10.3969/j.issn.1674-1579.2012.03.004

Abstract

Abstract: The influence of star senor’s characteristics on the accuracy of satellite angular rate estimation is emphatically studied. The relation between errors of star image centre extraction and accuracy of star vector measurement is analyzed. The accuracy of the leastsquare angular rate estimation is deduced, and then factors influence of error of star image centre extraction,the exposure time, the number of star vectors and their mutual angles on estimation accuracy. A simulation is set based on the given APS parameter and actual star distribution.

Key words: star sensor, leastsquares, angular rate estimation

CLC Number:

V249

LI Xiao, ZHAO Hong, WU Yan-Peng, WANG Li. Analysis on Accuracy of the Satellite Angular Rate Estimation Based on Star Sensor[J]., 2012, 38(3): 16-20.

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URL: http://journal01.magtech.org.cn/Jwk3_kjkzjs/EN/10.3969/j.issn.1674-1579.2012.03.004

http://journal01.magtech.org.cn/Jwk3_kjkzjs/EN/Y2012/V38/I3/16

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Analysis on Accuracy of the Satellite Angular Rate Estimation Based on Star Sensor

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