针对超机动飞行快回路的不确定非线性模型,提出了一种利用自适应模糊滑模控制器算法。在所得的最终控制信号中,采用模糊逻辑系统来逼近未知系统函数和开关项;所设计的鲁棒自适应律用来减小逼近误差,从而有效降低抖振。仿真结果表明,所设计的控制律能在过失速机动条件下控制飞机跟踪指令飞行,确保系统具有良好的动态和稳态性能,而且控制器具有很强的鲁棒性。

The high maneuvering capability is one of the features of the 4th generation fighters. Fighters with super-maneuvering capability will have apparent air superiority, but nonlinear control method should be used for flight control. We used adaptive fuzzy sliding mode controller in fast variables system of aircraft super-maneuverable flight. To deal the uncertainty and nonlinearity, fuzzy logic systems are used to approximate the unknown system functions and switch item. The robust adaptive law is used to reduce the approximation errors, thus the chattering is alleviated effectively. Simulation results showed that the new control law can make the aircraft fly according to its instruction under stalling condition, and guarantee a high dynamic and static performance, and the controller has high robustness.