双滑模变结构控制的BTT导弹自动驾驶仪设计研究

由于倾斜转弯控制技术的特点决定了BTT导弹的数学模型存在多种耦合因素，因此目前STT导弹广泛采用的忽略通道间耦合关系的三通道独立设计方案已远不能满足BTT导弹控制系统的设计要求。基于变结构控制理论，采用了一种新的BTT导弹自动驾驶仪的设计方法。该方法把俯仰和偏航两个耦合严重的通道联合建立状态方程，用自适应极点配置设计双滑动模态，降低了控制量的切换频率；用趋近律方法设计变结构控制，其控制量参数用自组织模糊进行调节，可有效削弱滑动模态的抖振。这种控制器简化了变结构控制，计算量小。

Dual Sliding Mode Variable Structure Control Design for BTT Missile Autopilot

Current channel independent STT design method cannot cater for the requirement of BTT missile design due to coupling between different channels. A new BTT missile autopilot design method based on variable structure control theory is presented. The design sets up a combined state equation for two coupling channels. Adaptive pole configuration is used for dual sliding mode, which can reduce the switching frequency of control factors. Approaching method is used for variable control design. The parameters of approaching function are adjusted timely, which can reduce the chatter of the slid mode. The method can simplify variable control and reduced calculate complex.