A robust control method for load electronic system of autonomous remote sensing satellite in-orbit

When remote sensing satellites in-orbit observe the earth, the imaging quality will be declined because the load electronic system is influenced by the interference signal. To ensure imaging performance of the actual model with uncertainty under external disturbance, in this paper the load electronic system mathematical model is proposed under the noise, and transformed into state space equations. Based on the basic idea of robust control theory, a method of the robust H_∞ controller is designed in this paper. Simulations of the closed-loop system performance with the robust controller are conducted. The simulation results prove the feasibility and robustness of the method.