Design of the Automatic Landing Fuzzy Control System Based on the Nonlinear Aircraft Model

This paper presents a novel design procedure for the control of aircraft automatic landing system using nonlinear technique and fuzzy control method. Firstly, the original nonlinear model of the aircraft longitudinal motion is linearized to a three-order decoupling system via the input-output feedback technique. A fuzzy control method is then introduced to design the linear system, which is used for self-regulation based on analytically optimal correction function. Finally, simulation examples are given both in normal and in parameter perturbation cases. The results show that the control system has good performance.