Z-变换的一个应用

An Important Application of Z-transform

Z-变换是对离散变量进行运算的一种有力的数学工具。本文从Z 变换的基本概念出发 ,给出了Dk 的一般公式及Snk = nj=1jk

Z-transform is a mathematically powerful tool to operate descrete variable sequence. This paper has introduced fundamental conception of Z transform and given some formula about D k and S nk =nj=1j k .