your resume and we can
discuss it further. Applicants must be US Citizens.
Thanks,
Kevin Rudd, PhD
Naval Research Laboratory
kevin.r...@nrl.navy.mil
202-404-3687
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Thanks for all the advice. After turning the power way down and
placing the tag within inches of the antenna, I can see the tag's
burts. It makes me wonder how the reader can pull out the tag's
bursts in 'real world' conditions. There is no processing gain to
pull it out of the noise.
Thanks ag
(Sorry if this posts twice)
Hello All,
I am trying to capture the communications between a RFID reader and
an EPC Gen 2 tag (920 MHz). I tapped directly into the antenna of a
Thinkmagic M5e RFID reader. I turn it on and it starts reading the
tags. When I look at the raw signal from the usrp or
I know no one asked for it, but I am going to throw my two cents in on
this discussion.
I model and simulate RF systems in MATLAB all day long. Some of which
are very complex. MATLAB is easy to use and very powerful for that
purpose. It would be great to demonstrate the systems using the US
I used MATLAB to create waveforms and then send them to GNURadio using TCP
ports and out through the USRP (and vise versa). Not sure if this is what
you want, but this is how I did it...
On the python side, I used the following code to open the TCP socket...
http://alumni.media.mit.edu/~jcoole
, October 25, 2007 4:33 PM
To: Kevin Rudd (Contractor); discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] mingw install help
"Kevin Rudd (Contractor)" <[EMAIL PROTECTED]> wrote:
> I am following the directions for installing GNURadio with minGW on XP
> found
> here..
Hello Everyone,
I am following the directions for installing GNURadio with minGW on XP found
here...
http://gnuradio.org/trac/wiki/MingwInstallMain
When I get to installing FFTW, I try compiling it (from MSYS prompt) and I
get the following error...
No acceptable C compiler found in $PATH
Quic
Hello all,
I just got my new notebook computer with Vista pre-installed. I have a
couple questions.
1) Has anyone had any luck installing GNURadio under Vista using Cygwin or
MinGW method?
2) Are there any performance issues running GNURadio under windows (XP or
Vista) as opposed to Li
Thanks for the suggestion. I dove into the TCP code to try and figure out
what it was doing. I found my problem. I have to use the following read
command...
data = pnet(con, 'read', 1000, 'SINGLE', 'NATIVE');
Now I notice that matlab seems to be lag behind the USRP. So, maybe matlab
is not t
Hello again,
I have decided to try the GNURadio -> TCP -> MATLAB route. I am running
into a few problems.
First, I downloaded Jamie Cooley's GNURadio TCP Socket code here...
http://alumni.media.mit.edu/~jcooley/gr_experiments/experiments/gr_socket.ht
m
Then I downloaded a free matlab TCP too
:26 PM
To: Kevin Rudd (Contractor)
Cc: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] Re: FRS with the FLEX400
Have you tried using the existing usrp_nbfm_ptt.py? It is intended for
exactly this application.
Matt
Kevin Rudd (Contractor) wrote:
> Hello again,
> Thanks for
and I see no
output from the USRP. Could I have a dysfunctional daughter card?
My newer code is below. Any help would be appreciated.
Kevin Rudd
Naval Research Laboratory
myfm.py
--
#!/usr/bin/env python
from gnuradio import gr, eng_notation
ing a single sine wave tone and
transmitting it so that I can hear it on the radio. For some reason my tune
function returns a false. Does this mean it did not tune to the correct
frequency? What could be causing that? My code is below if it helps.
Thanks!
Kevin
Hello all,
I just received my USRP and I have successfully installed GNURadio on my
Linux box. I am just starting to dabble with the code a bit. I am very
much a Windows/MATLAB developer, so I think I could be far more productive
if I could just stream the baseband waveforms to and from the US
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