The Study on Eliminating Limit Cycles of a Flight Control System-Adaptive Control and Linear Model Following Approaches

Model reference adaptive control (MRAC) and linear model following (LMF) approaches are adopted to eliminate limit cycles of a flight control system in this paper. Theoritical analyses, digital and semiphysical simulation are presented which show that the limit cycles of the flight control system are suppressed by using these methods. These methods can also be used for eliminating limit cycles of other control systems.