Output-prediction-based optimization design of missile attitude control by lateral jets

A dynamic and kinetic model is constructed for a missile with blended lateral jets and aerodynamic fins, from an analysis of which a simplified model is derived. Since the lateral acceleration has to meet fast response requirements, lateral jets are preferable to aerodynamic fins, both of which can provide attitude control torque, but with different response speeds. In this case, the output is predicted via Fliess functional expansion based on the discrete characteristics of lateral jets, and by the same way the thrust amplification factor is estimated. The design for the control law of a lateral jet attitude control system is formulated as an optimization problem, and fast response of the lateral acceleration is achieved by using the proposed attitude control law. Simulation results show the effectiveness of the proposed method.