Time-varying sliding mode control of missile based on suboptimal method

This paper proposes a time-varying sliding mode control method to address nonlinear missile body kinematics based on the suboptimal theory. The analytical solution of surface and corresponding law are obtained by solving state-dependent Riccati equation analytically. Then, Lyapunov is used analyze motion trend in asymptotic stability closed-loop system validated. transformed form pseudo-angle-of-attack feedback. simulation results indicate that satisfactory performance can be overcome influence parameter errors.