Nonminimum phase output tracking in dynamic sliding manifolds with application to aircraft control

Output tracking in sliding modes is considered for nonminimum phase nonlinear systems. A sliding mode controller design with a dynamic sliding manifold is developed. The desired linear output tracking is provided in a dynamic sliding manifold. The dynamic sliding mode controller combines features of a conventional sliding mode controller and of a conventional dynamic compensator. It is insensitive to matched nonlinearities and disturbances, and it rejects unmatched disturbances regardless of the nonminimum phase nature of a plant. The approach developed is applied to a sliding mode controller design used to track the angle of attack of aircraft or missiles configured with canards.