Multi: sliding Mode Backstepping Method for Integrated Missile Guidance and Control System

The integrated missile guidance control system is a complex nonlinear system control problem, which needs to consider the effects of uncertainties, unmatching disturbance, and input constraints. Most of the current control methods have not been fully considered. In this paper, the controller is designed for the integrated model of missile guidance control, combined with backstepping control and sliding mode control. By using extended disturbance observer to accurately observe the complex disturbance term in the sliding mode system, the influence of the disturbance is solved and the inherent differential explosion in backstepping control is avoided. Considering the input limitation problem, the sliding mode surfaces are optimized to reduce the amplitude and chattering of the controller without changing the form of the control law. Finally, the stability of the system is analyzed and the effectiveness and superiority of my method are verified by comparison experiments.