Output feedback sliding mode control with finite time trajectory tracking performance for the hypersonic vehicles

In this paper, the finite time trajectory tracking method is established for hypersonic vehicles. A new quasi-linear parameter varying model is proposed and a finite time controller is designed by the sliding mode method of output feedback. The matching conditions of disturbances and uncertainties are satisfied naturally which ensures the established control method has very excellent robustness and practicability. Simulations show that very accurately tracking trajectory results are obtained while the velocity and altitude are varying in large flight envelops.