Abstract
This paper considers fault tolerant attitude control problem of spacecraft under intermittent faults that occur in the control processor. A novel control framework based on multiple redundant control processors is provided, and a state-dependent switching law among these processors is proposed to stabilize the attitude dynamics without requiring control reconfiguration in each control processor when faults occur. Moreover, a probability-based method is provided to find the minimal number of control processors that are needed for attitude stabilization. Simulation results show the efficiency of the proposed methods.
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