Hi,
I am trying to do research in cognitive radio, here I am stuck in making a
energy detection model for my design simulation. I am looking for some
assistance further research site on the gnu to get through the process of
spectrum sensing so as to overcome my problem.
I would like to thank
On Wed, Apr 20, 2011 at 10:06 AM, Martin Braun wrote:
> Hi,
>
> as someone else[1] and myself (and probably others) figured out,
> libxi-dev must be installed in order to compile gnuradio on
> Ubuntu Natty, otherwise you'll get a
>
> /usr/bin/ld: cannot find -lXi
>
> message. Shouldn't this be ca
On 04/20/2011 10:56 PM, Stefan Gofferje wrote:
> sgofferj@enterprise:~> ll /usr/local/lib/python2.7/site-
> packages/gnuradio/gr/*gnuradio_core_runtime*
> -rw-r--r-- 1 root root 68910 Apr 21 05:09 /usr/local/lib/python2.7/site-
> packages/gnuradio/gr/gnuradio_core_runtime.py
> -rw-r--r-- 1 root ro
On Thursday 21 April 2011, Marcus D. Leech wrote:
> python
>
> from gnuradio import gr
sgofferj@enterprise:~> python -c "from gnuradio import gr"
Traceback (most recent call last):
File "", line 1, in
File "/usr/local/lib/python2.7/site-packages/gnuradio/gr/__init__.py", line
43, in
fr
On Thu, 2011-04-21 at 05:05 +0300, Stefan Gofferje wrote:
Try "locate gnuradio/__init__.py".
--n
Another issue is that if you'd installed Gnu Radio from a
distribution-packaged instance, the
dynamic linker will find its shared-libraries *first*, which can
cause incompatibilities between
On Thu, 2011-04-21 at 05:05 +0300, Stefan Gofferje wrote:
> Hi all,
>
> I have been experimenting with gnuradio about 2y ago and everything went just
> fine.
>
> Now I'm trying for about 5 days to get it to work again.
> Configure, check, compile and install go through fine.
> Just whatever I tr
Hi all,
I have been experimenting with gnuradio about 2y ago and everything went just
fine.
Now I'm trying for about 5 days to get it to work again.
Configure, check, compile and install go through fine.
Just whatever I try, I can't get grc running. I always get the message about
checking PYTHO
On Thu, 2011-04-21 at 09:15 +0800, yyl wrote:
> On Wed, 20 Apr 2011 17:47:57 -0700
> Nick Foster wrote:
>
> > On Thu, 2011-04-21 at 08:37 +0800, Yulong Yang wrote:
> > > Hello,
> > >
> > > I have tried both python -c "import..." and echo $. I see the path
> > > to my folder in both of them. But
On Wed, 20 Apr 2011 17:47:57 -0700
Nick Foster wrote:
> On Thu, 2011-04-21 at 08:37 +0800, Yulong Yang wrote:
> > Hello,
> >
> > I have tried both python -c "import..." and echo $. I see the path
> > to my folder in both of them. But it still says ImportError in
> > top_block.py. Where exactly s
On Thu, 2011-04-21 at 08:37 +0800, Yulong Yang wrote:
> Hello,
>
> I have tried both python -c "import..." and echo $. I see the path to my
> folder in both of them. But it still says ImportError in top_block.py.
> Where exactly should the path direct to? I tried both "~/gnuradio" and
> "~/gnuradi
Hello,
I have tried both python -c "import..." and echo $. I see the path to my
folder in both of them. But it still says ImportError in top_block.py.
Where exactly should the path direct to? I tried both "~/gnuradio" and
"~/gnuradio/myblock".
When you say __init__.py do you mean the one in sub-f
You cannot represent a "pure" sinusoid with a real signal. Think e^(jw)
vs Re{e^(jw)} Maybe someone could think of a better way to say this.
All USRP devices input and output complex baseband. You need to
represent your signal in complex baseband. I suggest experimenting by
feeding your signal in
> Do your mean PYTHONPATH or just system search path?
> I have set my block path as the PYTHONPATH in ~/.profile, but it still
> cannot work. Is there a way to check whether the path is set appropriately?
You are in linux I presume? "echo $PYTHONPATH" (without quotes) should
tell you what your py
On 04/20/2011 04:31 PM, Arya Santini wrote:
> By a real signal, I mean a signal like a real valued sinusoid. Say in
> a grc graph, I have this: signal generator (sine, float o/p) >
> float to short converter > usrp sink (short i/p). In this example,
Time out.
The USRP sink w/ short inp
On Thu, Apr 21, 2011 at 7:17 AM, Josh Blum wrote:
>
>
> On 04/20/2011 03:00 AM, Yulong Yang wrote:
> > Hello,
> >
> > I am new to GNU radio. I am trying to write a simple block and add it to
> > GRC. All steps before are fine. However, when I generate the
> > top_block.py file, it says "ImportErr
By a real signal, I mean a signal like a real valued sinusoid. Say in
a grc graph, I have this: signal generator (sine, float o/p) >
float to short converter > usrp sink (short i/p). In this example,
I'm inputting a stream of shorts representing a pure sine wave to the
usrp module. I wante
On 04/20/2011 03:00 AM, Yulong Yang wrote:
> Hello,
>
> I am new to GNU radio. I am trying to write a simple block and add it to
> GRC. All steps before are fine. However, when I generate the
> top_block.py file, it says "ImportError: No module named myblock".
>
> The myblock is actually the n
On 04/20/2011 03:24 PM, Feng Andrew Ge wrote:
> Josh,
>
> Thanks for the clarification.
>
> Does it mean that, by this hacked code, turning off RX mixer at
> transmitting time happens on FPGA? Or does it happen at UHD on the host
> side?
>
In this case the mixer is controlled by FPGA GPIOs t
> On 04/19/2011 01:10 PM, i...@agile-sdr-solutions.com wrote:
>>
>> Dear Matt,
>>
>> We honestly went through every material in search on Google but we
>> couldn't locate a single article published successful testing for
>> STBC/SFBC.
>>
>> For whatever reason, we would like to know, if you can con
Josh,
Thanks for the clarification.
Does it mean that, by this hacked code, turning off RX mixer at
transmitting time happens on FPGA? Or does it happen at UHD on the host
side?
Andrew
On 04/20/2011 06:15 PM, Josh Blum wrote:
On 04/20/2011 03:03 PM, Feng Andrew Ge wrote:
Josh,
When you
On 04/20/2011 03:03 PM, Feng Andrew Ge wrote:
> Josh,
>
> When you say " In any case, you can shutoff the rx mixer in full duplex
> mode with this little change:", is it true that this radio, once started
> with the changed code, cannot receive anymore at it runtime?
>
No: When, and only when,
Josh,
When you say " In any case, you can shutoff the rx mixer in full duplex
mode with this little change:", is it true that this radio, once started
with the changed code, cannot receive anymore at it runtime?
Andrew
On 04/19/2011 12:00 PM, discuss-gnuradio-requ...@gnu.org wrote:
Messag
As a user and would be developer on the gnuradio list it's always exciting to
hear about the availability for new products which can be used with gnuradio,
such as the FUNcube dongle and the work Alex did to support it and the Agile
solution platform. Product developer support for users on this
On Wed, Apr 20, 2011 at 07:13:15PM +0200, Josh Blum wrote:
> I think I see why:
>
> > //! Complex floating point (64-bit floats) range [-1.0, +1.0]
> > COMPLEX_FLOAT64 = 'd',
> > //! Complex floating point (32-bit floats) range [-1.0, +1.0]
> > COMPLEX_FLOAT32 = 'f',
> > //! Complex signed intege
On 04/20/2011 10:02 AM, Moritz Fischer wrote:
> On Wed, Apr 20, 2011 at 06:28:45PM +0200, Josh Blum wrote:
>> What do other gnuradio enums give you?
>>
>> python -c "from gnuradio import gr; print type(gr.GR_COS_WAVE)"
>>
>> Can you create a gr.sig_source?
> Yeah, it's a
>
I think I see why:
On Wed, Apr 20, 2011 at 06:28:45PM +0200, Josh Blum wrote:
> What do other gnuradio enums give you?
>
> python -c "from gnuradio import gr; print type(gr.GR_COS_WAVE)"
>
> Can you create a gr.sig_source?
Yeah, it's a
> Just trying to narrow it down...
Thanks for your efforts ;-)
Moritz
pgpho
I've been away from GNU Radio for a bit and wanted to ask... is wxPython (and
the included wrappers) still the recommended means of building simple GUIs? Or
has it been supplanted by, e.g., "something Qt" or similar?
Thanks,
---Joel
___
Discuss-gnura
On 04/20/2011 08:41 AM, Moritz Fischer wrote:
> On Wed, Apr 20, 2011 at 05:16:31PM +0200, Josh Blum wrote:
>> Whats your swig version?
> I'm on archlinux and I use swig 2.0.3-1 [1].
>
>> The last time I encountered this, someone had
>> swig 2 and it was incorrectly parsing an enum to type 'str'
On 04/20/2011 05:05 AM, Marcus D. Leech wrote:
> Previously, the package file for UHD placed the UHD shared libraries in
> /usr/local/lib, even on x86_64
> systems, where Fedora prefers libraries in /usr/local/lib64.
>
> So, if you'd modified your /etc/ld.so.conf.d to have a configuration for
Whats your swig version? The last time I encountered this, someone had
swig 2 and it was incorrectly parsing an enum to type 'str' (rather than
int). Whats this print?
python -c "from gnuradio import uhd; print
type(uhd.io_type.COMPLEX_FLOAT32)"
-Josh
On 04/20/2011 04:45 AM, Moritz Fischer wrote
On 04/20/2011 10:06 AM, Martin Braun wrote:
Hi,
as someone else[1] and myself (and probably others) figured out,
libxi-dev must be installed in order to compile gnuradio on
Ubuntu Natty, otherwise you'll get a
/usr/bin/ld: cannot find -lXi
message. Shouldn't this be caught by the configure scr
Hi,
as someone else[1] and myself (and probably others) figured out,
libxi-dev must be installed in order to compile gnuradio on
Ubuntu Natty, otherwise you'll get a
/usr/bin/ld: cannot find -lXi
message. Shouldn't this be caught by the configure script? If so, I
guess config/grc_qtgui.m4 could
I am running tunnel.py on gnuradio 3.3.0 . It run successfully for a while but
after a period of time (around an hour) the following exception prints out:
Rx: ok = True len(payload) = 82
Tx: len(payload) = 82
Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/lib64
Previously, the package file for UHD placed the UHD shared libraries in
/usr/local/lib, even on x86_64
systems, where Fedora prefers libraries in /usr/local/lib64.
So, if you'd modified your /etc/ld.so.conf.d to have a configuration for
/usr/local/lib, then your
code would link with the instan
Hey guys,
I started to have this with the git master and uhd from yesterday evening:
linux; GNU C++ version 4.6.0 20110415 (prerelease); Boost_104600;
UHD_003.000.001-8212f22
[...]
ub/grotarapi/PHY/PhysicalLayer.py", line 47, in __init__
self.u_tx = uhd.usrp_sink(hint, io_type=uhd.io_type_
Hello,
I am new to GNU radio. I am trying to write a simple block and add it to
GRC. All steps before are fine. However, when I generate the
top_block.py file, it says "ImportError: No module named myblock".
The myblock is actually the name of the folder I create to put all
necessary files of my
Hi All,
How can i get a USRP2 to toggle between reception and transmission.I
need to receive data , analyse it ans thereafter transmit based on the
analysed data.While i have written the C++ block for this, i cannot
figure out a way to toggle between Tx and Rx modes on the fly.
--
Regards
Lt Col
Does anyone know what the parameter alpha is ? I have confused about it several
days.It is a
parameter in the block gr_probe_mpsk_sbr_f. I think when we set this parameter,
the ratio for
the data signal and noise should be set in the received signal.But how do I set
this parameter?
Is there a
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