BTT导弹的变结构解耦控制系统设计

Decoupling System Design Based on Variable Structure System for BTT Missile

倾斜转弯(Bank-to-Tum,BTT)导弹由于气动外形不对称,以及存在较大的滚动速率,其各个通道之间存在强烈的耦合。本文在变结构控制理论对外界扰动的不变性原理的基础上,采用变结构控制方法设计了BTT导弹的输出解耦控制律。仿真结果验证了本文设计的变结构解耦控制器对于导弹这类参数快速时变,通道间耦合严重,有不确定因素的系统能够实现解耦控制,并具有动态响应快,超调小的特性。

There is strong coupling among uhe 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 deeoupling law of BTT missile. The simulation showed that deconpling 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.