xcorr.m

来自「声强互谱方位估计-用于目标声源方位估计」· M 代码 · 共 17 行

clear;
clc;
fs=1000;
t=0:1/fs:(1-1/fs);
maxlag=100;
x=randn(1,1000);
z=cos(2*pi*20*t)+0.8*randn(1,1000);
[c,lags]=xcorr(z,z,maxlag,'unbiased');
suplot(211)
plot(t,z)
xlabel('t');ylable('z(t)');
title('original signal')
subplot(212)
plot(maxlags/fs,c)
xlabel('t');ylable('Rz(t)');
title('zi xiangguan');