Optimal Control Method of Photoelectric Servo System Based on Rigid Body Model
In current missile weapon systems,most control systems rely on classical PID controllers.However,with the im-provement of control performance,it is difficult for PID controllers to simultaneously achieve rapid response and stable tracking processes.To address these challenges in engineering,an optimal controller is designed,and linear quadratic regulator(LQR)is used to solve optimal control law.Simulation results show that the optimal controller exhibits no static difference in tracking step signals,with an adjustment time of 0.034 s and stable rising process without overshoot.When tracking slope and sinusoidal signals,the track-ing error is less than 0.10,with a lag time of only a few milliseconds.This optimal controller system achieves rapid and accurate tracking performance for step,slope,and sinusoidal signals.Compared to classical PID controllers,this approach provides higher control precision,better control performance and stability,and effectively solves the issue of PID controllers being difficult to achieve both rapidity and stability in engineering applications.
photoelectric seekerservo systemoptimal controlLQRrigid model
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