Research On Trajectory Control Of Target Missiles

With the continuous improvement of modern weapon performance and testing requirements,the demand for target bombs in weapon system testing processes is also getting higher and higher.Modern target missiles can not only simulate the fixed-type missile flight parameters,but also to meet the different needs of the new target system of weapons and systems needs,such as the ability to achieve different targets for the flight and maneuver;classic control method is poor in the robustness of the input high signal requirements and is not able to solve the problem of noise interference and response at high angle input.Therefore,it is necessary to study the trajectory control of target bombs in order to meet the increasing demand for target bombs.To analyze the factors that affect trajectory,the simulation model of longitudinal channel of target projectile was established first,the trajectory of the target projectile under uncontrolled conditions is simulated,and the response characteristics and the variation of the angle of the system are analyzed.Based on this,the design of PID controller is set up,and the simulation of high-altitude target flight and low-altitude target flight completed.The longitudinal maneuvering simulation is carried out to realize the target maneuvering.This proves the theoretical control effect of PID controller.In order to solve the poor of robustness for PID controller,a fuzzy PID controller of target missile system is designed based on PID control and fuzzy control theory,and the results of fuzzy PID response and PID control under the influence of parameter change and noise are verified respectively,The results show that the fuzzy PID control system to improve the robustness of the parameters and noise impact.The fuzzy PID controller is affected by the fuzzy rules,the response is slow,and the control effect of the large-angle input signal is poor.To solve this problem,the model predictive control is used to control the target missile system.The target trajectory and centroid motion systems were respectively studied based on model predictions.The effects of angle tracking and trajectory control were investigated.The simulation results were analyzed and compared.The simulation results show that the model predictive algorithm can take account of both the control system Response speed and accuracy requirements for largeangle motor control,the target missile control system has a broad application prospect.