Research On Uav Ship Landing System Based On Net Recovery

Landing a UAV on a ship is a demanding task, requiring precision control of the flight path. This dissertation, with improvement of the UAV Automatic ship net recovery System's path control precision as its purpose,mainly studies on some critical techniques of ASNRS.Firstly,the configuration of UAV net recovery carrier landing system is studied,forming the mat- hematical model that required during study of carrier landing and the mathematical model of UAV. The longitudinal attitude control is developed. To improve the path control capability and the UAV maneu- verability, an Approach Power Compensator(APC)is introduced in longitudinal channel. A coordinate lateral flight control system is studied.Simulation results show the correctness and feasibil- ity of the design.Secondly,to improve the dynamic precision and achieve a capability to track a moving ship,a new real-time trajectory tracking guidance control algorithm that can implement guidance control of UAV net recovery is introduced.The simulation shows the validatation of this method.Thirdly, to improve the performance of the UAV ship net recovery system,the structure and prin- ciple of total energy control are systematically presented, furtherly eliminate the stable error of airspe- ed and altitude ,side-slipping and yaw when decoupling control through TECS theroy. Simulation res- ults show satisfactory landing performance.Finally, to improve the rejection of turbulence,total energy contr- ol technique and H_∞control th- eory are employed to implement UAV net recovery control. Simulation shows that the designed syste- m yields satisfactory performance.This dissertation contributes to academic research and engineering application of UAV carrier landing system.