Nonlinear Autopilot Design based on Inversion System and Fuzzy Logic

The design specifications of the missile autopilot can be described by the expected behavior and in this paper one kind of nonlinear longitudinal controller is proposed based on dynamic inversion theory and multi-scales property of missile system. Further more, choosing Mach as a scheduling variable, the autopilot based on a Mamdani fuzzy controller is synthesized. Numerical simulations show the missile autopilot can achieve the performance goals and good robust performance over the whole flight envelope with uncertainty of aerodynamic parameters..