Research On Automatic Carrier Landing Control Based On Robust Preview Control

The aircraft carrier/carrier-based aircraft system will be playing a significant role in control of the air,the sea and the land in the future.Many military powers are particularly concerned with the study of the system.However,the security of carrier-based aircraft has been a hidden danger,especially in the carrier landing stage.Therefore,this problem must be solved as soon as possible in order to improve success rate of carrier-based aircraft carrier landing.From the development of the US Marine Corps to see,automatic carrier landing system is the key to solve the problem,where the flight control system is the core.In this paper,firstly,the mathematical model of F18 is established,and the nonlinear model of carrier-based aircraft is obtained.Then the linear model of carrier-based aircraft is established on the basis of equilibrium carrier landing state.According to linear matrix parameter characteristic,the decoupled longitudinal channel model and lateral channel model can be obtained.Based on the linear design strategy,the automatic carrier landing system of robust preview control、robust H infinity control and robust mixed control of carrier-based aircraft are designed respectively.The numerical models of air wake and deck motion are obtained according to analysis influence of these two disturbances.With the growth of sea state,deck motion and air wake are becoming increasingly severe.Then both air wake model and deck motion model are added into automatic carrier landing system of carrier-based aircraft.Finally,robust preview controller is applied into the nonlinear model of carrier-based aircraft to verify the effectiveness of algorithm with MATLAB/SIMULINK.The simulation results show that robust preview controller can improve the system stability,anti-jamming ability and tracking accuracy.