Abstract
This paper addresses the attitude tracking control problem for rigid spacecraft with parameter uncertainties and harmonic disturbances. In this technical note, synergetic optimization control method based on collaborative adaptive and modified Rodrigo parameters(MRP), studies the problem of rigid spacecraft attitude tracking control in the presence of uncertain disturbance. First of all, disturbance observer is constructed to estimate the frequency of online external interference signal, known then, a nonlinear adaptive collaborative optimization controller based on this disturbance observer is designed to track the target profile, and the controller need only modified Rodrigo parameters(MRP) feedback information and angular velocity. Secondly, by using Lyapunov analysis method, the global asymptotic stability of control system is proved. Finally, numerical simulation results for the rigid spacecraft show good performances, which validate the effectiveness and feasibility of the proposed schemes.
Published Version
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