Adaptive attitude takeover control for space non-cooperative targets with stochastic actuator faults

This paper focuses on the attitude takeover control for the space non-cooperative targets with stochastic actuator faults. In this paper, the stochastic deviation faults and gain faults of the actuators, as well as the inertia tensor calculated errors are all under consideration. By introducing an adaptive deviation fault compensation term and an input uncertainty compensation law in a nonlinear feedback controller, an adaptive fault tolerant attitude takeover control scheme is synthesized in this paper. The considered stochastic thruster faults, the calculated inertia tensor error and the external disturbance can be compensated, the stochastic attitude stabilization and tracking are maintained as a result. Based on a quadratic Lyapunov function, the proof of the stochastic convergence is completed. Simulation results demonstrate the effectiveness and advantages of the proposed method.