摘要
文章给出按相位裕量确定采样周期使其动态过程的衰减度为 1/ 4 ,并且提出了用闭环系统时间常数选择非振荡系统的采样周期和用闭环系统特征方程的根的虚部选择衰减振荡系统的采样周期。用线性迭加原理分析了均值滤波对动态过程的影响 。
Gives the method of using the phase margin to determine the sampling period,which makes the controlled systems have the 1/4 attenuation ratio,presents using the closed loop system's time constant to choose the sampling period of non-osillating systems and using the imaginary part of the root of the closed loop system's characteristic equation to choose the sampling period of decay oscillating systems.Using the principle of linear repeatedly addition analyses the mean-value filter's influence on the transition process,presents how to choose the sampling period of the controlled systems with the mean-value filter.
出处
《微机发展》
2002年第2期8-10,共3页
Microcomputer Development
