Aiming at the long time in-orbit navigation of spacecraft,a fully autonomousnavigationsystembased on sins/ultravioletsensor/starsensor is proposed With the ultravioletsensor for positioning and the starsensor f...
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ISBN:
(纸本)9781467383196
Aiming at the long time in-orbit navigation of spacecraft,a fully autonomousnavigationsystembased on sins/ultravioletsensor/starsensor is proposed With the ultravioletsensor for positioning and the starsensor for attitude determination,a higher navigation precision can be reached Then the state model and the measurement model for this integrated navigationsystem are constructed in the inertial *** spacecraft attitude is represented by the MRPs in these models,for large initial misalignment angle or large angle maneuver as orbit *** last,the EKF and UKF filter method are used for both low orbit and high orbit *** simulation results show that the positioning accuracy is as high as310 m even for geosynchronous orbit spacecraft.
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