Robust control synthesis method for the satellite

This paper presents a robust H^∞ control synthesis method for the satellite. The method is applied to the robust stabilization problem of the satellite in the face of parameter uncertainties and external disturbances. Observer-based robust H^∞ state feedback controller is adopted and the controller parameters can be derived from corresponding LMIs. A numerical simulation for a satellite´s attitude control system shows that the closed loop system has both the satisfactory robust stability and the excellent ability of rejecting exogenous noise.