[USRP-users] USRP captured data information

Marcus Müller marcus.mueller at ettus.com
Tue Apr 14 10:20:01 EDT 2015


Hi Alok,

I must admit that I'm really a bit confused about your question: You
seem to know that the data is I/Q complex samples, but you ask what they
are. It's complex baseband samples, contained in 32-bit floats (per imag
and real part).

Best regards,
Marcus


On 04/14/2015 03:58 PM, alok ranjan via USRP-users wrote:
> Hello All list members,
>
>
> I am new to SDR and USRP platform.
>
> I have two USRP1 with the DB WBX for transmission and reception of data.
>
> I used benchmark_tx.py script and benchmark_rx.py script for
> transmission and reception purpose with all the parameters.
>
> I captured the transmitted signals using the command uhd_rx_cfile.  
> As the captured data  is in the binary format (complex 32, , i+j*Q),
> *I converted the binary data into .mat file using octave.*
>
>
> I would like to know as the data is captured and stored in file, which
> kind of information it does contain with it.  Is it a RSSI value  at
> receiver or something else? 
>
> How can I know that what is X and Y in the captured file .
>
> Please suggest and guide me so that i can further do data processing
> and analysis.
>
>
> Looking forward for your response.
>
> Regards,
>
> Alok Ranjan
>
>
>
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