Matlab Program for Auto Correlation

Matlab Program for Auto Correlation:                                      

clc

clear all

close all

n=0:3;

x=[1 2 3 4];

subplot(1,2,1);

stem(n,x);

grid on

title('x(n)sequence');

xlabel('n');

ylabel('Amplitude');

t=-3:3;

y=xcorr(x,x);

subplot(1,2,2);

stem(t,y);

grid on

title('rxx(l)');

xlabel('n');

ylabel('Amplitude');

OUTPUT: