Abstract
This work presents a thrust vector and aerodynamics compound control method based on Linear Quadratic Regulator control, which can increase the control ability. A small deviation dynamic thrust vector/aerodynamics compound control model was built. A compound control method is proposed based on Linear Quadratic Regulator(LQR) control in pitch channel. The thrust vector control and the aerodynamics control were designed as inner loop and as outer loop, respectively. The external disturbance and ballistic inclination angle were observed by using an Linear Extend State Observer(LESO). The small deviation simulation with the external disturbance was conducted. Simulation results show that the proposed methods meet the control requirements of solid rocket and has higher control precision compared with proportion mixing method.
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