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Design of Variable Structure Stability Control Loop for Anti-air Missile with Swing Nozzle Thrust Vector Control

A new design method of stability control loop for the swing nozzle thrust control anti-air missile is present in this paper. Firstly, the model of the missile which considered the aeroservoelastic and swing nozzle effect is given. Then, based on the small error linearization model, the theory of Variable Structure Control is used for stability control loop design for the missile with the model uncertainty and disturbance, the framework of the Variable Structure Control of the longitude autopilot is constructed. Finally, the simulation on the control system shows that the robust stability and performance is achieved.