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//Example 4.5
// Inverse Continuous Time Fourier Transform
// impulse funtion
clear;
clc;
close;
// CTFT
A =1; //Amplitude
Dw = 0.005;
W1 = 4; //Time in seconds
w = -W1/2:Dw:W1/2;
for i=1:length(w)
XW(1)=1;
end
XW = XW';
//Inverse Continuous-time Fourier Transform
t = -0.01:1/length(w):0.01;
xt =(1/(2*%pi))*XW *exp(sqrt(-1)*w'*t)*Dw;
xt = real(xt);
figure
a = gca();
a.y_location ="origin";
a.x_location ="origin";
plot(t,xt);
xlabel(' t time in Seconds');
title('Inverse Continuous Time Fourier Transform x(t)')
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