Research On Guidance And Cooperative Formation Flight Control Technology Of UAV

For the advantage of UAV that it does not have attricist and also with its super-maneuverability, many countries focus on the resesrch of UAV. In order to complete its mission, the guidance of UAV is necessary, the cooperative attack among multi-UAVs is of great importance for winnig the war, and how to keep multi-UAVs in a close formation is a focus of current research on UAV. In this dissertation, it takes UAV as the background, mainly studies the guidance of UAV, the close formation keeping and cooperative attack of multi-UAVs.First of all, a discussion is devoted to studying the guidance of the UAV with intelligent control methods. In the guidance of UAV, because, the relative velocity and rate of LOS determine the control command of UAV, fuzzy control and RBF net control are proposed to solve the guidance of UAV. According to this, the GA with SA is used to search the best control command for the fuzzy control because of its ability to find the optimum method with which the guidance process takes shorter time and less energy. The simulation results show the effects of all methods above.Then, the controller is designed to keep the close formation of multi-UAVs in the same level. Because of the different influence of vortex, adaptive controller, robust controller and fuzzy controller are designed, and the effects are shown by the simulation. In order to enhance the robustness of formation, a fault-tolerant control method is proposed in end of this chapter.Following, the cooperative attack and defense in multi-UAVs are studied. Using FCM and GA, the combat between two air fleets is divided into several groups. In each group, the matrix based on three-dimension combat situation is constructed, for the different roles of each UAV, cooperative attack&defense matrix is gained. The attack logical decision is proposed, and the intelligent decision with RBF net is gained also, simulation results are given in the end of this chapter.Finally, 3D animation simulation based on Creator and Vega is designed, and an animation simulation interface is designed with MFC, vividly demonstrates the grouping of air fleet, formation flying and aircombat of 2VS4.