Abstract
Low frequency error of star sensor that caused by the thermal distortion of star sensor and its installation structure is an important part of the star sensor's measurement error. And it is one of the most important factors that affect the satellite attitude determination accuracy and cannot be eliminated by traditional filtering method. In order to deal with this problem, a low frequency error compensation method for star sensor based on state estimation algorithm is used in this paper. The numerical simulation illustrates that the effect of the star sensor's low frequency error on attitude determination accuracy is effectively decreased by the proposed method.
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