飞机纵向非线性系统的鲁棒输出跟踪控制器设计

研究了单输入单输出非线性不确定系统的鲁棒输出跟踪控制。在标称系统可输入/输出线性化、不确定性项有界且满足广义匹配条件的情况下，可得到系统的高增益鲁棒输出跟踪控制器。鲁棒控制器仅依赖于设计参数和不确定性的界。将该方法应用于飞机纵向高阶非线性动态的控制器设计，并进行了数字仿真。结果表明了该方法的有效性。

ROBUST OUTPUT TRACKING CONTROLLER DESIGN OF FLIGHT LONGITUDINAL NONLINEAR SYSTEM

Robust output tracking controller design method of uncertain non linear systems was studied and applied to flight control. There exists one kind of high gain robust output tracking controller in case that the nonlinear system is Input/Output linearizable and the uncertainties are assumed to be bounded and satisfy the general matching condition. The given robust controller only depends on the design parameters and the bounds of uncertainties. The outputs of system can asymptotically track the desired bounded tracking signal whose derivatives are also bounded. The flight longitudinal dynamic is apparently nonlinear and robust controller is necessary while treating the high order terms in dynamic as uncertainties. The small tracking error verifies the effectiveness of the design method and controller.