stft for complex data
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Hello,
I have I and Q signals and want to see my data in frequency domain. So is there any way to get stft of I and Q signals in complex form ?
Thanks.
2 Comments
Mathieu NOE
on 6 Apr 2021
hello
I and Q are real valued data ? not complex I assume , so you can do stft of each one
Answers (1)
Bjorn Gustavsson
on 6 Apr 2021
Shouldn't that be as simle as:
Acmplx = I + 1i*Q;
spec = fft(Acmplx); % or spectrogram etc
HTH
2 Comments
Bjorn Gustavsson
on 12 Apr 2021
What is the I and Q signals you have? Explicitly.
If you have the original signal there is no need to Hilbert-transform before doing the STFT-analysis.
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