clc;
clear all;
close all;
x=[0 0 0 1 2 3 4];
x1=[1 2 3 4];
[autocorr, lags] = xcorr(x,x1)
subplot(3,1,1);
stem(x);
title('Signal');
subplot(3,1,2);
stem(x1);
title('Delayed signal');
subplot(3,1,3);
stem(lags,autocorr);
title('Lags vs autocorrelation-value');
[~, index] = max(autocorr);
delay_sample = abs(lags(index))
Fs=1;
delay_seconds = delay_sample/Fs