基于自适应模糊快速终端滑模控制的导弹自动驾驶仪设计

针对一类多输入多输出非线性不确定系统,提出了自适应模糊快速终端滑模控制方法并应用于导弹自动驾驶仪的设计。利用模糊系统具有以任意精度逼近非线性系统的能力对未知干扰和不确定性进行逼近,并通过鲁棒项提高了系统性能。基于Lyapunov方法,证明了闭环系统所有信号渐进收敛。最后利用本文提出的控制方案设计了6自由度导弹的自动驾驶仪,仿真结果表明了控制方案的有效性和鲁棒性。

Missile autopilot design based on adaptive fuzzy fast terminal sliding mode control method

An adaptive fuzzy fast terminal sliding mode control(AFFTSMC) method for a class of multi-input and multi-output nonlinear uncertain systems and its application to a missile autopilot is presented.The uncertainties and unknown disturbances are estimated by fuzzy system in virtue of its approaching ability,and a robustious item is used to enhance the performance of the composite system.The overall systems guarantees that all signals involved are asymptotically stable by Lyapunov method.Finally,the missile autopilot of six degrees of freedom(6DOF) is designed based on the proposed method.Simulation results demonstrate the effectiveness and robustness of the proposed method.