Copyright 2014 Ron Economos

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This file is part of gr-dvbs

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gr-dvbs is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 3, or (at your option)

any later version.

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gr-dvbs is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

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You should have received a copy of the GNU General Public License

along with gr-dvbs; see the file COPYING. If not, write to

the Free Software Foundation, Inc., 51 Franklin Street,

Boston, MA 02110-1301, USA.

gr-dvbs

Author: Ron Economos Email: w6rz@comcast.net

The goal of this project is to build a software-defined DVB-S transmitter, based on the EN 300 421 V1.1.2 Framing structure, channel coding and modulation for 11/12 GHz satellite services standard:

http://www.etsi.org/deliver/etsi_en/300400_300499/300421/01.01.02_60/en_300421v010102p.pdf

The randomizer, Reed Solomon, and puncturing blocks are from gr-dvb (https://github.com/EdmundTse/gr-dvb) and converted to GnuRadio 3.7.x. The interleaver block is from gr-qam (https://github.com/argilo/gr-qam).

A gnuradio-companion flowgraph (dvbs_tx.grc) for the bladeRF transmit capable SDR is included along with a stand-alone Python script for bladeRF (dvbs-blade-py).

Build instructions:

mkdir build
cd build
cmake ../
make
sudo make install
sudo ldconfig

Contributions are welcome!

Update (6/18/2014):

A new DVB-S modulator block has been added that implements zero-stuffing 2X interpolation. This allows the use of an FFT-based root-raised-cosine filter instead of the more computationally intense interpolating FIR filter.