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.
댓글 수: 2
Mathieu NOE
2021년 4월 6일
hello
I and Q are real valued data ? not complex I assume , so you can do stft of each one
답변 (1개)
Bjorn Gustavsson
2021년 4월 6일
Shouldn't that be as simle as:
Acmplx = I + 1i*Q;
spec = fft(Acmplx); % or spectrogram etc
HTH
댓글 수: 2
Bjorn Gustavsson
2021년 4월 12일
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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