Thanks to GnuRadio, USRP, and Joe Gaeddart's liquid DSP.
http://www.hpcwire.com/hpcwire/2013-05-09/two_virginia_tech_teams_named_finalists_in_darpa_spectrum_challenge.html
Forgive if this is a repost.
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May be a silly question, but does your flow graph contain a throttle block ?
-- Volker
Am 21.06.2013 04:55, schrieb Crypto.Troop:
Hi,
I just installed GNURADIO from git, onto a brand new install of Mint 15.
I followed the following instructions:
http://bgamari.github.io/posts/2013-06-15-hack
Just a sanity check here... let's say your access code is 001100 and your
threshold is 3. Then you receive 000101.
So clearly the received access code is "001010" with 2 errors. As bits
stream through you'll have more than one instance where there are <= 3 bit
errors (output is 002321), whi
Hi,
I just installed GNURADIO from git, onto a brand new install of Mint 15. I
followed the following instructions:
http://bgamari.github.io/posts/2013-06-15-hackrf.html
gnuradio-config-info -v
3.7.0git-143-gad1d52fd
With Python 2.7, I was able to get everything compiled and installed. The
CMake
Hi Arturo - You're getting further than I am :) . I've just tried doing the
build using MacPorts gcc-4.7 and gcc-4.6, with the 3.6.4.2 release as well as
the latest maint and master branches. Every one of them errors out as follows:
volk/lib/volk_cpu.c:54:no such instruction: `xgetbv'
make[2]:
Gnu Radio v3.6.4.2 on ARM target.
make test : 100% pass.
But this happens each time python does "from gnuradio import gr_unittest":
<6>[ 390.919792] python (1771): undefined instruction: pc=42a9c328
<6>[ 390.919822] Code: f26ee1fe e12fff1e (ee190f1d)
For example, when qa_add_
I just had a weird problem with multimode.py with a user bringing it up
on Ubuntu.
It provoke TypeErrors in the multiply_const blocks, due to
multipy_const_vxx expecting a vector, and being passed a scalar.
GRC has code in it to recognize scalars, and wrap "[ ]" around them to
make them list
Hello List,
Many of you have been asking about GNU Radio Conference. It took some
time to locate a venue in the region of interest, but we've finally
found one. We thank you for your patience!
* Dates, Location, and other Info:
Conference Date: Oct 1, 2013 – Oct 3, 2013
Hackfest Date: Oct 4, 2
On 06/20/2013 03:46 PM, Burak TUYSUZ wrote:
Thanks Marcus for the information.
However, I did not understand at which point I should do that change.
Should I use gr_head so each file contains exact amount of samples? Is
there an example that I can refer to?
There's a set_file() method or some
Il 20/06/2013 20:06, Marcus D. Leech ha scritto:
On 06/20/2013 02:02 PM, Michele Costantino wrote:
What's your OS?
ubuntu 13.04 64 bit
The last little bit of build-gnuradio output suggests what
your PYTHONPATH should be.
Also, if your "python" is actually linked to Python3, that
might be you
Thanks Marcus for the information.
However, I did not understand at which point I should do that change.
Should I use gr_head so each file contains exact amount of samples? Is
there an example that I can refer to?
On Thu, Jun 20, 2013 at 3:17 PM, Marcus D. Leech wrote:
> **
> On 06/20/2013 03:1
On 06/20/2013 03:15 PM, Burak TUYSUZ wrote:
Hi,
I just wonder if there is a method built in GNURadio that will allow
me to create incremental files (1.dat, 2 dat ...) instead of a huge
file in continuous operation.
I did implement a similar structure by taking the data in buffers and
creati
Hi,
I just wonder if there is a method built in GNURadio that will allow me to
create incremental files (1.dat, 2 dat ...) instead of a huge file in
continuous operation.
I did implement a similar structure by taking the data in buffers and
creating files afterwards. However I would like to know
On Thu, Jun 20, 2013 at 07:10:43PM +0200, Martin Braun (CEL) wrote:
> Video is live: expect some silence at the beginning.
>
> http://youtu.be/apGAVM6j0Wo
That same link also works to re-watch the call if you missed it.
MB
--
Karlsruhe Institute of Technology (KIT)
Communications Engineering L
On 06/20/2013 02:02 PM, Michele Costantino wrote:
What's your OS?
ubuntu 13.04 64 bit
The last little bit of build-gnuradio output suggests what
your PYTHONPATH should be.
Also, if your "python" is actually linked to Python3, that
might be your problem. Make sure that the command "python"
ac
I find it's vastly more convenient to do that stuff in my .bashrc than
to type it manually every time I start a shell or launch a command...
sure, but before making changes to my .bashrc, i usually try the manual
way before.
Have you tried "sudo ldconfig"?
yes, but i get the same error.
Video is live: expect some silence at the beginning.
http://youtu.be/apGAVM6j0Wo
MB
On Tue, Jun 18, 2013 at 11:29:06AM +0200, Martin Braun (CEL) wrote:
> Hi everyone,
>
> a quick reminder that there'll be a developer's call this Thursday.
> As usual, hangout starts at 1700 UTC.
>
> If you want
Well, I don't really know why you don't get the same n_rcvd as default
benchmark. I have never seen that benchmark.
Maybe you have some silly "error" when checkin number of wrong bits. Make
flowgraph with both your and default correlator and see what's going on. I
would probably do that.
Nemanja
Hi Nemanja,
Thanks for your kind reply!
I'm trying to design a program which will achieve the same result as the
default benchmark, because I'll use the default benchmark in some part of the
program too. So I use the default threshold 12. I want to make sure that is
means that in the 8 Byte ac
It does make sense. I am pretty sure that I have taken those functions from
one of the blocks provided with gnuradio.
I can't find it at the moment but i will check.
Thank you
On Thu, Jun 20, 2013 at 3:59 PM, Tom Rondeau wrote:
> On Thu, Jun 20, 2013 at 9:53 AM, Nemanja Savic wrote:
> > i am
On 06/20/2013 02:06 AM, Favati wrote:
Il 19/06/2013 20:06, Marcus Leech ha scritto:
Hmm, is PYTHONPATH marked for *export* in your .bashrc?
Why? I use the export at the command prompt (and yes...i try to launch
the gnuradio companion in the same shell).
I'll try to put PYTHONPATH in .bashrc
On Thu, Jun 20, 2013 at 9:53 AM, Nemanja Savic wrote:
> i am pretty sure when I delete inline it passes, otherwise not. Prototypes
> are the same for sure. The prototypes in .i file are the same even for
> inline and non-inline functions, i also checked that.
Actually, thinking about it, no, you
i am pretty sure when I delete inline it passes, otherwise not. Prototypes
are the same for sure. The prototypes in .i file are the same even for
inline and non-inline functions, i also checked that.
On Thu, Jun 20, 2013 at 3:40 PM, Tom Rondeau wrote:
> On Thu, Jun 20, 2013 at 9:38 AM, Nemanja
On Thu, Jun 20, 2013 at 9:38 AM, Nemanja Savic wrote:
> Hi,
>
> I am using 3.6 style.
> And the problem is due to inline functions. Why? In some other blocks I have
> inline functions?
No, there are no problems with inline functions. Are you sure the
function prototype in your header file and in
Hi,
I am using 3.6 style.
And the problem is due to inline functions. Why? In some other blocks I
have inline functions?
On Thu, Jun 20, 2013 at 3:16 PM, Tom Rondeau wrote:
> On Thu, Jun 20, 2013 at 8:34 AM, Nemanja Savic wrote:
> > Hi all,
> >
> > today I got really strange problem. Everythi
On Thu, Jun 20, 2013 at 8:34 AM, Nemanja Savic wrote:
> Hi all,
>
> today I got really strange problem. Everything was in perfect order, I was
> designing a new block, and when finished I tried to test it, but the
> following error came:
>
>> ImportError: /home/savi_ne/work/gnuradio/gr-test/build/
Hallo Sema,
I believe the function you are looking for is called set_center_freq, when
using the gnuradio interface to the USRP. So it should be:
usrp = uhd.usrp_source(device_addr = addr, io_type =
uhd.io_type.COMPLEX_FLOAT32, num_channels = 1)
usrp.set_center_freq(1.03e9, 0) # Passing th
Hi all,
today I got really strange problem. Everything was in perfect order, I was
designing a new block, and when finished I tried to test it, but the
following error came:
ImportError: /home/savi_ne/work/gnuradio/gr-test/build/swig/_test_swig.so:
> undefined symbol: _ZN20test_synchro14enter_hav
stefosee wrote
> Assuming that it works right, now, i'm trying to design the fm0 encoder.
> I know its harder because each output is related to the previous one.
> Is there any fm0 already implemented? Or is there any link to help me do
> it?
> TIA
Up to recent
Could anyone help me with the bui
Hi all (again) guys,
Basicaly I was designing block for sampling digital pulses after
demodulation, and wanted to see the moments of sampling by generating
signal of zeros and 1 in the moment of sampling. The problem is when I
store both input and output signal in files and run GRC to see them bot
On 19.06.2013 17:51, lingeswar kandregula wrote:
i saw that link before.. there are VGA and BB in the transmitting path
if we consider the XCVR daughter board. is that distributed between
these two or anything else also shares it? ..
There are only two gains (BB and VGA) that can be controlled
I am using this code to set an intermediate frequency in Python platform:
usrp = uhd.usrp_source(device_addr = addr, io_type =
uhd.io_type.COMPLEX_FLOAT32, num_channels = 1)
usrp.set_rx_freq (0, 1.03e9)
but I am getting an error as:
AttributeError: 'uhd_usrp_source_sptr' object has no attribu
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