Hi folks,
For those of you interested in Radio Direction Finding, I would like to
share this video:
http://www.youtube.com/watch?v=NSC4Y8yA-jY
of a presentation I gave recently about DF in general, and my homebrew
(auto-)mobile SDRDF system using the USRP and GNU Radio.
Any questions/comments
Hi all,
I am testing benchmark_rx.py in examples/digital/ofdm/ directory. I want
change the modulation method dynamically when the flow graph is running. On
way is that lock, disconnect, reconfigure, connect and then unlock flow
graph. However, this way is often lead to program stuck. So is there
Thanks for the hint. It seems that there is a problem with the
libfreetype library:
$ python
Python 2.7.2 (default, Jan 21 2012, 15:35:05)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type help, copyright, credits or license for more information.
import gtk
Traceback (most recent call
It looks like you have a mixed install, somehow, of MacPorts stuff; some older,
some newer. If you haven't done it recently, I'd recommend:
sudo port selfupdate
sudo port upgrade outdated
and, if that breaks, do:
sudo port clean outdated
sudo port -p upgrade outdated
and then report the
George,
On 03/04/2012 12:51 AM, George Nychis wrote:
Hi all,
I'm going to be hacking carrier sense in to the FPGA on the USRP2 very
soon. Basically, taking what I did with the in-band project from the
USRP1 with carrier sense, and moving it forward to USRP2.
The idea is, just like you
George,
I do think we need something like what you have suggested but I am still
a bit puzzled about the right way of implementing it.
Best regards,
Andre
I think a more fundamental issue is that carrier sense isn't actually
defined in any kind of general way. Certainly for *some* types of
I totally like and support your idea and would love to help realizing
it. Using the timestamp logic inside UHD as a reference is a great idea
that also came to my mind a while ago.
There are a few things from the architecture point of view though that
need to be discussed. Let's take a CSMA
Definitely, there are MACs whose form of carrier sense is detecting
preamble rather than detecting energy. In my same piece of work, we
put a matched filter in the FPGA and the host specifies the
coefficients of the match filter, then you gate on that. But, I don't
think it's unreasonable
On Sun, Mar 4, 2012 at 10:01 AM, Marcus D. Leech mle...@ripnet.com wrote:
George,
I do think we need something like what you have suggested but I am still
a bit puzzled about the right way of implementing it.
Best regards,
Andre
I think a more fundamental issue is that carrier sense
On 03/04/2012 04:01 PM, Marcus D. Leech wrote:
George,
I do think we need something like what you have suggested but I am still
a bit puzzled about the right way of implementing it.
Best regards,
Andre
I think a more fundamental issue is that carrier sense isn't actually
defined in any
On 03/04/2012 04:10 PM, George Nychis wrote:
I totally like and support your idea and would love to help realizing
it. Using the timestamp logic inside UHD as a reference is a great idea
that also came to my mind a while ago.
There are a few things from the architecture point
In the amateur radio world, AX.25 packet radio terminal node
controllers supported KISS mode, which left the CSMA and HDLC framing
in the TNC but offloaded the state-machine for connection management to
the host CPU stack.
KISS merely provided a way to forward the frame metadata and payload
Hello all,
Cmake seems to insist on installing all libraries in /usr/local/lib
instead on /usr/local/lib64. I can't find an obvious way to define
a destination path in cmake, or an architecture.
My machine is an AMD64, running Slackware, where the difference between
32 and 64 bit libraries is
cmake --DREDHAT --DLIB_SUFFIX=64 ..
Still installs in lib instead of lib64.
I think its the double dashes. Try -DLIB_SUFFIX=64
-josh
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Ok, false alarm with my bug, apparently the compiler checks the old
installed volk directory first, once I cleaned out my system include
dir it compiled fine.
There is a noticeable difference on my old P4 with sse3 in everything
GNU Radio related! This is great stuff!
On Sat, Mar 3, 2012 at 5:52
Let me put it this way... I'm going to build it because I need it ;) But
what I'm asking/hoping for is for it to be useful beyond just me and
actually have a lifespan beyond my immediate use of it. So, I'd like to
get some feedback on how others might like to see it tied in to UHD, or the
type
On Sun, Mar 4, 2012 at 12:30 PM, Andrew Davis glneolistm...@gmail.comwrote:
Ok, false alarm with my bug, apparently the compiler checks the old
installed volk directory first, once I cleaned out my system include
dir it compiled fine.
There is a noticeable difference on my old P4 with sse3
On Sun, 04 Mar 2012 09:20:07 -0800
Josh Blum j...@joshknows.com wrote:
Still installs in lib instead of lib64.
I think its the double dashes. Try -DLIB_SUFFIX=64
Yes! Thanks... But why the double dash on --DREDHAT ?
John
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Ali,
given that you haven't received any responses so far, I guess this means
there are not so many people out there who are willing to share their
images ;)
It might be useful to create such an image, but in the free software
world, you're more likely to find people using KVM or Xen
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