Application of Parameter Self-Tuning Fuzzy PID Controller in Guidance Loop of Unmanned Aircraft

Traditional design methods for the guidance and control system of the unmanned aircraft are based on accurate object model, which can not achieve satisfactory effect when the dynamic characteristic shows larger variety during the flying process. In this paper, an improved parameter self-tuning fuzzy PID controller is proposed to maintain good dynamic performance for the guidance loop of unmanned aircraft. The simulation result shows that the control effects of the proposed fuzzy PID controller are better than that of the conventional PID controller, which can maintain the high steady precision of the conventional PID controller, as well as having the advantage of fuzzy control that can improve the dynamic performance considering a wide parameter variation.