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//Scilab Code for Example 10.11 of Signals and systems by
//P.Ramakrishna Rao
//System Identification
//Cross Correlation
clear;
clc;
x=[1,1,1,1,0,0];
y=[1,3,6,10,12,12,10,6,3,1];
h(1)=y(1)/x(1);
for n=2:7
for k=1:n-1
z(k)=(h(k)*x(n-k));
h(n)=(y(n)-sum(z));
end
end
disp(h,'h(n)');
n=1:7;
a=gca();
a.x_location="origin";
a.y_location="origin";
plot2d3(n,h,-4);
title('System Response h(n)');
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