Mission Equipment And Flight Control System Modeling And Research

With the development of unmanned aircraft vehicles (UAVs) and surveillance -reconnaissance technique, the high altitude long endurance hybrid reconnaissance UAV becomes a most important target in recent years. This paper begins with a outline of tracing theory, configuration and fuzzy logic controller which is applied in the platform altitude control . A new autonomous controller is introduced based on fuzzy logic (fuzzy-based AC). Subsequently a two-axis gyro-stabilized platform is investigated based on one-axis gyro-stabilized platform and a reduced model is gotten. Both FLC and fuzzy-based AC are applied in experiment. Finally, the aircraft motion and two-axis gyro-stabilized platform are combined. Platform's motion equation is provided with the hybrid of aircraft. A synthesized control system of flight and platform position is made, and input about aim position of platform in photography reference frame is presented. A hybrid combination of the fuzzy-based AC and PID with a tunable structure is employed. The result of the experiment for the hybrid control system is compared with a FLC in order to evaluate the result and proved having advantages in restraining disturbance...