1.8 KiB
leansdr: Lightweight, portable software-defined radio.
Copyright (C) 2016 pabr@pabr.org
This program 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 of the License, or (at your option) any later version.
This program 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.
You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.
leansdr consists of:
- A simple data-flow framework for signal processing
- A C++ library of software-defined radio functions
- Applications built on top of the above.
Currently the main application is leandvb.
leandvb
leandvb is a DVB-S demodulator designed for speed rather than sensitivity.
See http://www.pabr.org/radio/leandvb for details and use cases.
Quick start guide
git clone http://github.com/pabr/leansdr.git
cd leansdr/src/apps
make
Receiving DATV transmissions from the ISS with a RTL-SDR dongle:
rtl_sdr -f $DOWNCONVERTED_FREQ -s 2400000 capture.iq
./leandvb -f 2400e3 --sr 2000e3 --cr 1/2 < capture.iq > capture.ts
mplayer capture.ts
Troubleshooting
./leandvb --gui -v -d -f 2400e3 --sr 2000e3 --cr 1/2 < capture.iq > capture.ts
Live receiver with auto-detection of symbol rate and code rate:
rtl_sdr -f $DOWNCONVERTED_FREQ -s 2400000 - | ./leansdrscan -v ./leandvb --gui -f 2400e3 --sr 2000e3,1000e3,500e3,250e3 --cr 1/2,2/3,3/4,5/6,7/8 - | mplayer -cache 128 -