Double Vector Attitude Coarse Estimation Method based on Polarization Information of X-ray Pulsar

Abstract

This paper proposes a new dual vector attitude coarse alignment method based on polarization information. In this paper, the linear polarization position angle (PPA) is analyzed by using the stability factor, and the optimal linear PPA is selected. On this basis, the initial attitude is estimated by the double vector method. Simulation experiments show that the proposed method is not sensitive to errors. This method can effectively determine the coarse attitude of the spacecraft and provide a better initial attitude angle for other subsequent attitude determination algorithm.