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Re: [Discuss-gnuradio] SDR platform other than usrp with gnuradio
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] SDR platform other than usrp with gnuradio |
Date: |
Fri, 18 Jul 2008 15:57:52 -0700 |
User-agent: |
Mutt/1.5.17 (2007-11-01) |
On Fri, Jul 18, 2008 at 05:55:21PM -0400, Anand Prabhu Subramanian wrote:
> Dear Eric,
>
> Thanks for the pointer. I get raw IP packets.
Intersting choice. What are you using for the protocol field?
Why not go for UDP? It's only 8 bytes longer, and easy to deal with
in user mode on any OS.
> I have written a C program to read these packets and plot the
> spectrum in matlab. I wanted to use gnuradio to do different signal
> processing functions. Also I plan use the OFDM module in gnuradio.
OK.
> I am trying to understand the usrp_spectrum_sense.py file in
> the example and see what are the functions/classes related to USRP are
> used.
Besides what it takes to initially get the usrp setup, the only thing
it expects is that the gadget it's talking to has a way to set the
frequency.
> I will go through the pointers you have given and get back with specific
> questions.
Very good.
> One question regarding the samples that come out of USRP. Are they baseband
> I/Q samples?
Yes. We send 16-bit I & Q.
Eric