Hi All,
I wanted to use some of the communication related signal processing
functions in gnuradio. Has anyone done something on these lines before?
Please let me know.
Thank you!
Pradyumna
Hi All,
I wanted to use some of the communication related signal processing
functions in gnuradio. Has anyone done something on these lines before?
Please let me know.
Thank you!
Pradyumna
Pradyumna Desale wrote:
Discuss-gnuradio mailing list
[email protected]
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
We have been planning to do this all the time but no progress yet
Hey Per,
Thanks for replying! I wanted to start by incorporating channel models
(channel.h if you are familiar with IT++) and was wondering if just
writing
a wrapper function in swig would do the necessary work for us or we have
to
make some specific changes to incorporate those codes in gnuradio
framework.
Any thoughts?
For starters I am going to write a wrapping function for
set_channel_profile() in channel.h (line no. 676) and another wrapper
for
virtual void generate (int no_samples, cvec &output)=0
I was wondering if I should follow the guidelines of how to write a
signal
processing block or there is another method? I am not superbly confident
with swig and it will be awesome to have someone to bounce ideas off of.
Let
me know.
Pradyumna
On Fri, Mar 05, 2010 at 06:15:13PM -0500, Pradyumna Desale wrote:
Hey Per,
Thanks for replying! I wanted to start by incorporating channel models
(channel.h if you are familiar with IT++) and was wondering if just writing a
wrapper function in swig would do the necessary work for us or we have to make
some specific changes to incorporate those codes in gnuradio framework. Any
thoughts?
I’ve been wanting to use the channel coders from IT++ in GNU Radio, and
found writing wrappers is not difficult. I never finished packaging any
code
(though I’ve got some code somewhere, if I find it I’ll send it to you),
but here’s some of the knowledge I gathered:
Perhaps this was of any help to you…
MB
–
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)
Dipl.-Ing. Martin B.
Research Associate
Kaiserstraße 12
Building 05.01
76131 Karlsruhe
Phone: +49 721 608-3790
Fax: +49 721 608-6071
www.cel.kit.edu
KIT – University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association
On Mon, Mar 8, 2010 at 02:06, Martin B. [email protected] wrote:
I’ve been wanting to use the channel coders from IT++ in GNU Radio, and
found writing wrappers is not difficult. I never finished packaging any code
(though I’ve got some code somewhere, if I find it I’ll send it to you),
The license on IT++ appears to be GPLv2.
If wrapping IT++ code with GNU Radio blocks is as straightforward as
you say, it may be worth it to create a new, optional top-level
component in gnuradio, say “gr-itpp”, that provides wrappers for some
of the more useful bits. This wouldn’t include any IT++ code itself;
the component would just require having IT++ already installed as a
build/runtime dependency. (For people not interested, it just
wouldn’t get configured for build at configure time.)
I would encourage those on the list here to discuss the idea further,
with an aim to figuring out what the “low-hanging fruit” would be.
If there is enough interest, I can create a skeleton top-level
component as a basis for patch submission.
Johnathan
On Mon, Mar 08, 2010 at 08:42:03AM -0800, Johnathan C. wrote:
If wrapping IT++ code with GNU Radio blocks is as straightforward as
you say, it may be worth it to create a new, optional top-level
component in gnuradio, say “gr-itpp”, that provides wrappers for some
of the more useful bits. This wouldn’t include any IT++ code itself;
the component would just require having IT++ already installed as a
build/runtime dependency. (For people not interested, it just
wouldn’t get configured for build at configure time.)I would encourage those on the list here to discuss the idea further,
with an aim to figuring out what the “low-hanging fruit” would be.
IT++ has some nice stuff, it’s well documented and tested. Judging by
the web site, development seems to have stalled at the moment, but from
what I can tell, it seems to be at a pretty mature stage. I guess adding
wrappers would be an easy way to enhance GNU Radio.
Two things I’d like to add:
The last point is not a big problem in my opinion, since there’s not
that much stuff in IT++ which is really interesting in GR (basically the
channel models and the FECs).
As I said, I already had a look at this and seeing there’s some
interest, I’d give it a hack.
MB
–
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)
Dipl.-Ing. Martin B.
Research Associate
Kaiserstraße 12
Building 05.01
76131 Karlsruhe
Phone: +49 721 608-3790
Fax: +49 721 608-6071
www.cel.kit.edu
KIT – University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association
On Tue, Mar 09, 2010 at 11:38:48AM +0100, Martin B. wrote:
The last point is not a big problem in my opinion, since there’s not
that much stuff in IT++ which is really interesting in GR (basically the
channel models and the FECs).
As I said, I already had a look at this and seeing there’s some
interest, I’d give it a hack.
I had a bash at this, and uploaded the result on CGRAN. The result is
not the most beautiful code ever written, and not tested outside my box,
so be careful.
Just grab https://www.cgran.org/svn/projects/itplusplus/trunk/gr-itpp
Included stuff:
Some caveats:
And, erm, the build system, ahem, was not adapted. So, if you don’t have
IT++ installed, configure will not complain. I simply added a command
for the linker in lib/Makefile.am and prayed.
By Sod’s law, this will not work if you try it at home, but since there
was some interest on the list I didn’t want to keep my code lying around
on some hard drive. If someone wants to try it, I’d appreciate some
feedback.
Martin
–
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)
Dipl.-Ing. Martin B.
Research Associate
Kaiserstraße 12
Building 05.01
76131 Karlsruhe
Phone: +49 721 608-3790
Fax: +49 721 608-6071
www.cel.kit.edu
KIT – University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association
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