dnsample.m

来自「数字信号处理—基于计算机的方法教材上的所有例题源程序」· M 代码 · 共 5 行

function xd = dnsample(x,L)
% down sampling for a sequence with n>=0
% L - the down sampling ratio
m = 1 : L: length(x);
xd = x(m);