应用非线性反馈精确线性化方法进行了飞机自动着陆系统设计。首先， 用非线性微分方程组表示的飞机纵向控制系统， 在经过输入输出反馈线性化以后， 可等效为线性系统； 然后，用线性的ＰＩＤ控制方法对变换后的线性系统进行了设计； 最后， 考虑风的干扰， 对所设计的飞机自动着陆控制系统进行了数字仿真。仿真结果表明， 用反馈线性化方法设计的飞控系统具有良好的性能 The aircraft automatic landing system design was carried out by using the nonlinear feedback precise linearization method. First of all, the longitudinal control system of aircraft, which is represented by nonlinear differential equations, can be equivalent to a linear system after the input-output feedback linearization. Then linear linear PID control is used to design the transformed linear system. Finally, , Considering the disturbance of the wind, the designed aircraft automatic landing control system has been digitally simulated. Simulation results show that the flight control system designed by feedback linearization method has good performance