随机连续系统离散化方法和分析

Analysis and Methods About the Discretization of Random Continuous Systems

本文从频域分析了随机连续系统离散化原理。概括出五种离散化方法：差分法、卷积法、相关函数不变法、功率谱密度不变法、Ｔｕｓｔｉｎ变换法。

Thispaper analysis the principle about the discretization of random continuous sys tem in frequency field.Five methods of discretization are proposed,namely,the difference method, convolution integral method,correlation functions invariant method.power spectrum densitvs invariant method and Tustin-change method.