Hi Bastian, Now the grc examples work with no error. The crash of the system during gnuradio compilation is due to the boost version (the version 1.46 causes the problem). After I switched to version 1.48, the compilation of the current gnuradio from the git repository works all right.
Regards, Dingwen 2013/4/16 Bastian Bloessl <bastian.bloe...@uibk.ac.at> > Hey Brian, > > first, thank you for your comment. > > > On 04/15/2013 03:37 PM, Brian Padalino wrote: > >> >> I think it would be great for the community to get a rundown of the >> entire standard itself, modulation/demodulation within GNU Radio, how >> you handled frequency/sampling offsets, etc. >> >> > > I thought about that and as it is all-supervisors-are-at-**infocom-week, > I tried something... > > I made an IPython notebook, and reimplemented the transmitter iterative > (i.e. non-stream) in python in the browser. I annotated it with text and > plots and pictures. > It leads the reader step by step through the whole encoding process until > we are at complex baseband representation. Than it writes the samples into > a file. (The whole stuff happens in the browser, or is controlled through > the browser). > > I included a script, that creates a Linux pipe and starts the file_tx > program, which is part of the UHD library. So the samples are really > transmitted. > I can receive the signal that I send in the browser with my TelosB mote. > > It's somehow funny and you can look at the signal in every stage of the > encoding process. > > It's a bit hard to describe and maybe some don't have ipython installed. > So I made a really, really ugly video [1], but maybe it helps to see what > going on. > > You can have a look at the notebook here [2]. It is a Gist rendered by the > notebook viewer. You can download the Gist [3] and run it interactively in > your browser. > > The whole stuff is not prove read, contains a lot of errors, is just 4 fun > and should just show the idea. > > Best, > Bastian > > > [1] > http://www.youtube.com/watch?**v=OKeRCZGHi1E<http://www.youtube.com/watch?v=OKeRCZGHi1E> > [2] http://nbviewer.ipython.org/**5394322<http://nbviewer.ipython.org/5394322> > [3] > https://gist.github.com/**bastibl/5394322<https://gist.github.com/bastibl/5394322> > > > > -- > Dipl.-Inform. Bastian Bloessl > Institute of Computer Science > University of Innsbruck, Austria > Phone: +43 512 507-53288 / Fax: -53079 > http://ccs.uibk.ac.at/~**bloessl/ <http://ccs.uibk.ac.at/~bloessl/> > > ______________________________**_________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/**listinfo/discuss-gnuradio<https://lists.gnu.org/mailman/listinfo/discuss-gnuradio> >
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