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how do I fftshift my complex spectrogram? #161

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rcox771 opened this issue Jun 1, 2019 · 1 comment
Open

how do I fftshift my complex spectrogram? #161

rcox771 opened this issue Jun 1, 2019 · 1 comment
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@rcox771
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rcox771 commented Jun 1, 2019

I'm looking at complex-valued radio signals caught from my SDR and normally process spectrograms in their human-understandable (fftshift'd) form.

Here's what scipy produces:
image

and, here's what I get with pytftb:
image

Is there a simple way to make everything conformant?

Thanks,
Russell

@jaidevd
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jaidevd commented Jun 11, 2019

Hi @rcox771

The idea is to (sometime in the near future) get rid of tftb's STFT implementation (#156 ) and use scipy's implementation. When we do that, it will fix the spectrogram too.

I'll notify this thread when this is done.

@jaidevd jaidevd added this to the v0.2 Release milestone Jan 11, 2021
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