Energy-Management Steering Maneuver for Thrust Vector-Controlled Interceptors

Abstract

This paper attempts to give a complete scheme to describe energy-management steering maneuver for thrust vector-controlled interceptors. Energy-management steering maneuver relates to thrust vector control, and thus spiral motion, direct-force control, large attitude-angle flight, the appropriate models of missile dynamics, spiral trajectory, and the corresponding control strategy must be established. A nonlinear, strong-coupling, parameter, time-varying, dynamical model is employed to describe the large attitude-angle flight. A feedback-linearization technique based on differential geometry is then used for the attitude-controller design. A helical-coordinate system is established that is suitable for describing the spiralmotion. Finally, some six-degrees-of-freedom simulation results verified the performance of the proposed approach.