fft with frequency axis on log scale
35 views (last 30 days)
Show older comments
Hello, I have a sampled signal and I'd like to take it's fft with the x axis on log scale. Also, is there anything wrong with the way I'm doing the fft? Thanks
Here's my code
fs=2000;
Hs=spectrum.periodogram; % Use default values
plot(psd(Hs,Signal,'Fs',fs))
0 Comments
Accepted Answer
Wayne King
on 1 Nov 2011
Hi, You can just save the output of psd() and use semilogx
fs=2000;
Hs=spectrum.periodogram; % Use default values
psdest = psd(Hs,Signal,'Fs',fs);
semilogx(psdest.Frequencies,10*log10(psdest.Data));
grid on;
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!