自动振幅控制系统是非线性闭路控制系统。本文研究它的静态和动态性能及设计方法,证明了系统的静态压缩精度完全取决于环路增益。如在环路中使用一个积分器,系统的静态性能将到到改善。本文还研究了一阶及二阶自动振幅控制系统低通滤波器参数的设计问题,导出了设计公式,并证明了二阶系统的动态性能优于一阶系统。还分析了输出信号波形畸变的原因,介绍了减少畸变的方法。 Automatic amplitude control system is a non-linear closed-loop control system. This paper studies its static and dynamic performance and design method, and proves that the static compression accuracy of the system depends entirely on the loop gain. If an integrator is used in the loop, the system’s static performance will improve. In this paper, the design of low-pass filter parameters of first-order and second-order automatic amplitude control systems are also studied. The design formulas are derived and the dynamic performance of the second-order system is proved to be superior to the first-order system. Also analyzed the reason of the output signal waveform distortion, introduced the method of reducing the distortion.