模糊自适应过失速飞行控制

研究了带推力矢量飞机过失速非线性飞机控制问题。根据奇异摄动理论将受控变量分为快变量和慢变量，然后分别对内环和外环进行设计，外环利用滑动面控制进行设计，内环利用模糊逻辑系统的万能特性来抵消近似非线性动态逆所带来的误差，根据李亚谱诺夫稳定性理论了模糊系统权值的自适应调整规律，从而保证闭环系统的稳定性。数字仿真结果表明：在存在较大的模型不确定性以及飞机动力学对状态和控制输入均为非线性的情况下，该控制方案能对指令进行良好的跟踪。

Fuzzy adaptive post-stall flight control

The design of the flight control system with the thrust vectoring is discussed.The flight state variables are separated into fast and slow variables in terms of perturbation theory. Slide model is used to design the outer loop controller,and fuzzy-adaptive control is adopted to cancel the errors brought with approximate ioversion in designing inner loop controller.The weights adjust laws is get based on Lyapunov theory to assure the stability of control system.Simulation results show this control law achieves a high level performance even if the aircraft model has large uncertain items and aircraft dynamics are nonlinear in both states and controls.