Research On Maneuver Flight Control Technology Of A High Speed Target Drone

With the constant engine technology,the strong motive power of the 3rd and 4th generation fighter has put increasing pressure on anti-aircraft weapons.To simulate the characteristics of maneuvering flight,the demand for maneuvering capability of target drone is becoming more and more urgent.Taking flip maneuver and S maneuver as examples,this paper studies the key problems in maneuvering flight and designs control strategy to realize the maneuvering flight control of target drone.The main contents include:Firstly,according to the kinematics and dynamics principle of flip maneuver and S maneuver,the problems,difficulties and control requirements of the maneuvering flight are analyzed,and the control scheme based on angular rate is proposed.Secondly,aiming at the non-linear characteristics of maneuvering flight,the motion model is abstracted first into a mathematical model that can characterize the movement characteristics.Then the thesis analyzes the nonlinear factors existing in the mathematical model and extracts the decoupling control strategy.Based on the non-linear decoupling control,a control law applicable to both maneuvering flight and routine trips is designed.Thirdly,synthesize robust servo and model reference adaptive control to design the maneuvering flight control law of main and auxiliary structure which is based on angular rate.The robust servo controller ensures the robust performance of the closed-loop system.The adaptive controller compensates for the uncertainties in the model.Together,these controllers ensure fast,stable and effective tracking of maneuvering command.Finally,a numerical model is built under the environment of Matlab / Simulink to simulate flip maneuver,S maneuver and the combination of both of them that is Immelman Turn.Simulation results show that the maneuvering flight control law meets the requirements of maneuvering flight control which can track commands quickly and effectively under bounded disturbances and parameter perturbations,and has good robustness and stability.