Research of attitude stabilization problem for control system with lateral thrust and aerodynamics blended

Missile with lateral thrust and aerodynamics blended have the merits of rapid response and big available overload, so it can intercept missile of high speed and high maneuverability. This paper studies attitude stabilization problem for trajectory-control blended system at the end of guidance. At first, the characteristics and the main control problem for blended system are analyzed, and the blended control model is established. Then the extended state observer is applied to observe the internal disturbance and the external disturbance of control model for blended system, further the feedback compensation is performed, thus the dynamic linearization is implemented. At last the non-smooth feedback control law is designed for the linearized system, thus the attitude controller for blended system is achieved. The simulation results show that the closed loop system attains high dynamic performance and steady-state performance and the controller has excellent robustness performance.