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//Example 3.22
clear ;
close ;
clc ;
t = -5:1/100:5;
for i =1: length (t)
if t(i) <0 then
h(i)=0;
x(i)=0;
else
h(i)=1;
x(i)=1;
end
end
y = convol (x,h) ;
//figure
f=scf(0);
plot2d (t,h)
xtitle ( ' Input Re spons e ' , ' t ' , ' h ( t ) ' );
xs2jpg(0, 'problem31-plot-a.jpg');
//figure
f=scf(1);
plot2d (t,x)
xtitle ( ' Input Re spons e ' , ' t ' , ' x ( t ) ' );
xs2jpg(0, 'problem31-plot-b.jpg');
//figure
f=scf(2);
a= gca ();
t1 = -10:1/100:10;
plot2d (t1 ,y)
xtitle ( ' Output Re spons e ' , ' t ' , ' y ( t ) ' );
xs2jpg(0, 'problem31-plot-c.jpg');
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