Fixed-time Attitude Tracking Control of Rigid Spacecraft with Input Deadzone and Output Constraint

摘要

In this paper, the fixed-time attitude tracking controller is proposed for rigid spacecraft subject to input deadzone and output constraint. Based on barrier Lyapunov function technique, a fixed-time controller is designed such that attitude tracking errors converge to zero within a fixed time while not exceeding the pre-specified boundaries in the presence of disturbance and input deadzone. The simulation reults are also provided to demonstrate the effectiveness of the designed fixed-time tracking control approach.