Baseband Signal Extraction

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saadan
Posts: 1
Joined: Thu Sep 07, 2017 5:44 am

Baseband Signal Extraction

Post by saadan » Thu Sep 07, 2017 5:50 am

I am trying to extract a baseband from a wideband spectrum. For this purpose I have tried using both the 'Frequency Xlating FIR Filter' and the 'Frequency Xlating FFT Filter' (screenshot of the flowpragh is attached).

The problem that I have encountered is that upon changing the centre frequency of the Xlating Filter using a slider, each time the signal(recording of a 5M spectrum being received from another USRP) appears on a different frequency than it was originally observed.

Thanks in advance for a solution.
Attachments
Flowgraph.png

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