自适应模糊H_∞输出反馈控制在导弹自动驾驶仪设计中的应用

Missile autopilot design using adaptive fuzzy H_∞ control

研究了自适应模糊H∞控制在导弹自动驾驶仪中的应用。针对导弹飞行动态的非线性和不确定性,采用了近年来发展起来的自适应模糊控制,并结合H∞控制技术,在模型未知的情况下,有效地实现了导弹的飞行控制。另外,在状态不可测的情况下,利用高增益观测器,实现了导弹的输出反馈控制。提出的控制器不但对模型不确定具有鲁棒性,而且对具有不同飞行动态的导弹有很强的通用性。

Adaptive fuzzy H∞ control is employed to design a missile autopilot . Missile dynamics during flight is nonlinear and uncertain. The adaptive fuzzy control theory developed in recent years is combined with H∞ control technique to control the missile dynamics in the condition that the model is unknown or partially unknown. Moreover, when states are unmeasurable, a high- gain observer is used for implementing output feedback control of the missile. The control method is not only robust to the model uncertainty, but also usable to missiles with different flight dynamics.