Robust nonlinear control for bank-to-turn missile

Based on the two-timescale assumption, the dynamics of the Bank-to-Turn (BTT) missile are firstly separated into two parts: the dynamics of fast states and the dynamics of slow states. The velocities of BTT missile are chosen as state variables of the slow dynamics. The aerodynamic force coefficients are not linearized. First, the dynamics of fast states and the dynamics of slow states are linearized by using feedback linearization theory, then, considering the uncertainty of the aerodynamic coefficients of the BTT missile, the desired dynamics of fast states and the dynamics of slow states are designed based on Lyapunov stability theory. Six degree of freedom simulation results have shown the rightness and effectiveness of the proposed scheme.