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Spectogram Of I and Q data

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Sudhir Kumar
Sudhir Kumar on 4 Dec 2019
Answered: Shimon Elkin on 1 Aug 2022
Recently I have recorded Bluetooth signals raw I and Q data through USRP SDR for 30 seconds I want to plot the spectogram image from its I and Q value. How can I draw the spectogram so that I can do a CNN operation.How to do spectogram image from raw I and Q data of a wireless WiFi signal?

Answers (2)

Chunru
Chunru on 1 Aug 2022
x = xi + 1i*xq;
spectrogram(x)

Shimon Elkin
Shimon Elkin on 1 Aug 2022
you can see an example:
https://www.mathworks.com/help/signal/ref/spectrogram.html#mw_11150fe0-cc46-4bf9-aecf-1e4acff54b74
openExample('signal/SpectrogramOfComplexSignalExample')

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