Integrated Interceptor Guidance and Autopilot Design via Robust Dynamic Surface Control

In this paper, a new three-dimensional integrated guidance and autopilot controller of an interceptor based on robust dynamic surface control is presented. The objective is to control the fin deflection angles to make the line-of-sight angle rates converge to zero, and a robust block controller based on signal compensation is designed to handle the uncertainties in the system. The constructed compensation signals can suppress the uncertainties. Then Lyapunov stability theory is applied for stability analysis in the closed-loop system, and the choice of controller parameters. Simulations demonstrate the validity of the proposed controller and show its robustness to system uncertainties.