Inverse Fourier Transform: Frequency to time domain
2 views (last 30 days)
Show older comments
I want to obtain the scale of time after doing an ifft.
let I have
w=0:0.001:20 % w represents frequency
E(w)= a(w)exp(i(w-w0))
I want to obtain E(t) by E(t)=ifft(E(w))..
My question is what is the time scale representaion to get the time profile of E(t)?
Kindly help!
0 Comments
Accepted Answer
Ameer Hamza
on 13 Oct 2020
If 'w'
w = 0:0.001:20
is frequency of complete fft in rad/s. Then the sampling frequency is
Fs = (w(2)-w(1))*numel(w)/(2*pi); % sampling frequency
Ts = 1/Fs; % sampling time-step
and the corresponding time vector is
t2 = Ts*(0:numel(f)-1);
0 Comments
More Answers (0)
See Also
Categories
Find more on Fourier Analysis and Filtering 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!