An adaptive terminal sliding mode control and its applications

A novel adaptive Terminal sliding mode control based on fast fuzzy disturbance observer is designed for a high order MIMO(multiple-input multiple-out-put) nonlinear system.To solve the shortcoming of learning slowly of traditional fuzzy disturbance observer when the approximation errors are very small,a fast fuzzy disturbance observer is designed.It is strictly proved that the tracking errors and approximation errors converge to very small regions in finite time.Finally,simulation results of ASV(aerospace vehicle) re-entry demonstrate the effectiveness of presented control scheme.