基于状态反馈的导弹滚转通道变结构控制

针对导弹滚转通道参数时变性和快速性要求,提出了一种易于实现状态反馈变结构控制器的设计。将系统分为确定部分和不确定部分,然后分别对这两部分进行变结构控制。结果表明,适当的校正规则不仅保证滑模的存在,而且具有对参数扰动和外部扰动的不变性;状态信号的反馈提高了滚转通道的响应能力;伪滑模大大削减了变结构控制的抖动。并通过仿真证明了该方法的正确性和有效性。

Variable Structure Control Based on State Feedback For Rolling Channel of Missiles

Simple variable structure controller based on state feedback is proposed in order to meet to the speediness and the time-variety of rolling channel of missiles. The system is divided into certainty section and uncertainty section,to which different variable structure controller is designed.The scheme makes the rolling channel better in the following three respects: The first merit is that the method can assure the existence of sliding mode and the robustness to parameter variety and interference;the second is that the state feedback improves response time;the third is that the chattering is reduced due to hypocritical sliding mode.Lastly to verify the effectiveness of the proposed control,computer simulations for rolling channel of missiles control are demonstrated.