On Thu, Jun 16, 2011 at 9:52 AM, Martin Braun <martin.br...@kit.edu> wrote:
> Hi everyone, > > there's new stuff on our CGRAN repositories you might enjoy. > > * Channel Coding Toolbox > > We've created a new toolbox for channel coding stuff. > https://www.cgran.org/wiki/chancoding > > It includes some simple bit-based channel models (a standard BSC and > Markov-modeled BC) and generic block interleavers. The most interesting > part is definitely an implementation of binary Reed-Muller codes. These > codes have some uses; among others, sub-sets of these codes can be used > to bound the PAPR of OFDM signals (pre-set code is available). > One of our students (Nico Otterbach) implemented these codes as part of > his Bachelor's degree. A very well-written thesis with a nice > introduction to RM-codes is in the repository, unfortunately (for most > of you) it's in German. > > > * More Spectral Estimation Codes! > > https://www.cgran.org/wiki/SpecEst > > As part of another students project, spectral estimation based on ESPRIT > and MUSIC is now part of of the Spectral Estimation Toolbox (this means > we now have more spectral estimators implemented than Matlab does :-). > I'd like to thank Manuel Fuhr and Moritz Fischer for doing the hard > coding work. > This toolbox now has some cool elements: for one, it includes Fortran > code, which is quite an achievement by itself. Next, Moritz has ported > the whole thing to CMake. If you're interested to see how this can work > for complicated out-of-tree modules, have a peek at the code! > > Both projects include Doxygen-generated documentation and GRC bindings > for most blocks. > > > Besides announcing this, I'd like to encourage the use of GNU Radio > stuff for university credits. Obviously, we've had a lot of good > experiences with this, but it's also a good deal for the students: > fundamental understanding of signal processing requires implementation > (at least that's my opinion), and it is very satisfying to have a > working, reusable product when finishing such a project. > > Cheers, > MB > > -- > Karlsruhe Institute of Technology (KIT) > Communications Engineering Lab (CEL) > > Dipl.-Ing. Martin Braun > Research Associate > > Kaiserstraße 12 > Building 05.01 > 76131 Karlsruhe > > Phone: +49 721 608-43790 > Fax: +49 721 608-46071 > www.cel.kit.edu > > KIT -- University of the State of Baden-Württemberg and > National Laboratory of the Helmholtz Association > Martin, That is fantastic works! Thanks for putting it out there! I have a question on the channel coding work done. Was there any benchmarking performed on it to test the throughput speed? Also, is there any SIMD code used to improve the performance? If not, I wonder how difficult it might be to use Volk functions for that? Thanks again! Tom
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