Blended Methodology of Lateral Jet Simultaneous with Aerodynamic Fin for Integrated Guidance and Control of Flight Vehicle

Abstract

The design method of integrated guidance and control for flight vehicle with lateral jet and aerodynamic fin actuators is studied in this paper. By combining the relative kinematics between vehicle and target in three-dimensional space with the nonlinear dynamics of vehicle, a model of integrated guidance and control of flight vehicle is established firstly. In order to achieve accurate tracking of strong maneuvering target, an adaptive nonlinear control law of the integrated model for blending direct lateral jet force and aerodynamic fin force is proposed by using dynamic surface method. The vehicle relies on the lateral jets to generate direct force to speed up its attitude response based on daisy chain method of two kinds of actuators, and integer programming method is used to determine the start and stop of direct force. Based on Lyapunov theory and quantitative input idea, the stability of the closed-loop system under direct force and aerodynamic control is proved. Finally, the feasibility of the designed control law is verified by numerical simulation.