Research On Flight Control Of Loitering Missile Based On Model Predictive Control

With its outstanding advantages in flight speed,load capacity,and endurance time,loitering bombs have been widely used in the military field.However,as the modern battlefield environment becomes more and more complex,information warfare has higher requirements for loitering bombs.This paper takes a certain type of loitering bomb as the research object,aims to improve the trajectory tracking ability of the loitering bomb,analyzes and studies the loitering bomb’s track tracking and obstacle avoidance technology based on model predictive control,and designs the flight controller of the loitering bomb.The model predictive control is applied to the design of the flight-related controller of the cruise missile.The model predictive control is designed as an internal loop attitude controller based on the model predictive control,and the accuracy and robustness of the attitude controller are verified through simulation;the optimization of the model predictive control algorithm is proposed by introducing multiple thresholds to address the problem of large online computation of the model predictive control algorithm,and the optimization of the model predictive control algorithm is verified through simulation.It is verified through simulation that multi-threshold can play a significant effect in reducing the online computation of model predictive control while ensuring a certain control accuracy,and at the same time,the trajectory tracking controller of the cruise bomb is designed based on model predictive control,and the feasibility is verified through simulation.Combined with model predictive control,the obstacle avoidance technology of loitering missile is studied.Based on the characteristic circle,the simplified scheme of the shape feature of the obstacle is proposed;the judgment logic of the obstacle avoidance process is designed,including the design of the obstacle avoidance trigger judgment,the judgment of the obstacle avoidance direction and the end of the obstacle avoidance;the design of the obstacle avoidance controller based on the model predictive control,and the design of the obstacle avoidance controller.The obstacle avoidance controller of the loitering missile is verified and analyzed by the simulation of obstacle avoidance,and the simulation verifies the effectiveness of applying model predictive control to the obstacle avoidance control of the loitering missile.