Fourier Transform of a random Signal
19 views (last 30 days)
Show older comments
Kutlu Yigitturk
on 1 Jun 2021
Answered: Sulaymon Eshkabilov
on 1 Jun 2021
t = 0 : 0.001 : 2;
x = (2*(exp(-4*t))).*(cos(10*t).*unit(t))
subplot(2,1,1)
plot(t,x)
grid
I wrote such a code for this signal, but I don't know how to get the fourier transform of this signal. Thank you very much in advance for your help.
0 Comments
Accepted Answer
Sulaymon Eshkabilov
on 1 Jun 2021
Hi,
Here is the complete code:
t = 0 : 0.001 : 2;
x = (2*(exp(-4*t))).*(cos(10*t).*heaviside(t));
L= numel(x);
Y = fft(x);
M2 = abs(Y/L);
M1 = M2(1:L/2+1);
M1(2:end-1) = 2*M1(2:end-1);
dt=.001;
Fs = 1/dt;
f = Fs*(0:(L/2))/L;
subplot(2,1,1)
plot(t,x)
grid on
subplot(212)
plot(f, abs(M1))
xlim([0, 50]), grid on
xlabel('f, [Hz]')
ylabel('|X|')
0 Comments
More Answers (0)
See Also
Categories
Find more on Transforms in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!