Design of multi-mode flight control system for unmanned helicopter

Based on the special requirements of flight control and navigation system of unmanned helicopter, this paper present the main framework of flight control system in a certain type of unmanned helicopter, proposed three flight control modes based on different design stages, gave the autonomous control algorithm and the smoothing method while switching between remote control mode and stability augmentation mode, ultimately proved the feasibility of flight control and navigation program through the semi-physical simulation test and flight test.