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Re: [Discuss-gnuradio] Problem receiving square wave
From: |
Francesco B. |
Subject: |
Re: [Discuss-gnuradio] Problem receiving square wave |
Date: |
Thu, 13 Nov 2008 14:20:19 -0800 (PST) |
A fair amount of the RF-specific resources there are textbooks I don't have
access to, though it's probably a transmission issue, honestly. However, the
code consists a modified version of gr_sig_source_c (saved under an
alternate name) and usrp_siggen.py, with hard-coded values for all wave
properties save for the sampling frequency removed from usrp_siggen, and the
new block assigning pseudo-random numbers to them within a range that should
be tolerable. I'm not finding glaring problems, and it should be at least
mostly working, but is not. Code here:
http://www.nabble.com/file/p20490559/randsig_source_c.cc randsig_source_c.cc
http://www.nabble.com/file/p20490559/randsig_source_c.h randsig_source_c.h
http://www.nabble.com/file/p20490559/randsig.i randsig.i
http://www.nabble.com/file/p20490559/usrp_randsiggen.py usrp_randsiggen.py
Brian Padalino wrote:
>
> Is it really a reception issue, or more of a transmission issue? Take
> a look at the frequency characteristics of some of these different
> waveforms, then look at your overall bandwidth of the signal you're
> able to transmit as well as the overall bandwidth of your received
> signal.
>
> You may want to look at the Suggested Reading page on the wiki:
>
> http://gnuradio.org/trac/wiki/SuggestedReading
>
> This will probably preemptively answer a lot of questions you have
> with regards to radio communications.
>
> Brian
>
>
> _______________________________________________
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>
>
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