Decoupling system design based on variable structure system for BTT missile

There is strong coupling among the channels of BTT missile because of its aerodynamic appearance and speedy rolling. Based on the law that the sliding mode of variable structure control is constant to external interference, the thesis designed the output decoupling law of BTT missile. The simulation showed that decoupling controller based on variable structure control has fast dynamic response and low over-shoot merit for the systems like missile with fast time varying parameters, strong coupling and many uncertain factors.