Radial Basis Function Sliding Mode Controller

A sliding mode controller based on RBFN is presented for high precision flight simulation bed. The control value is divided into a hitting control law and an equivalent control law according to the moving characters of the sliding mode controller. Equivalent control law is designed to keep the system sliding along the sliding surface. It is approached by a RBFN and the weight of the network is tuned on line using adaptive algorithm to guarantee the probability of the real time control of the system. Hitting control law is applied to drive the representation point everywhere of the state space onto the sliding surface. It is deduced from the hitting condition of the sliding mode controller and the upper and lower bound parameters must be known. The result of computer simulation demonstrates the robustness and the effectiveness of the proposed algorithm.