{::comment} SPDX-License-Identifier: GPL-3.0-or-later SPDX-FileCopyrightText: 2011-2020 Carles Fernandez-Prades {:/comment} title: gnss-sdr brief: An open source global navigation satellite systems software defined receiver tags: - sdr - gnss - gps - Galileo - Glonass author: - Carles Fernandez-Prades - Javier Arribas - et altri (see AUTHORS file for a list of contributors) copyright_owner: - The Authors dependencies: - gnuradio (>= 3.7.3) - armadillo - gflags - glog - gnutls - matio license: GPLv3+ repo: https://github.com/gnss-sdr/gnss-sdr website: https://gnss-sdr.org icon: https://gnss-sdr.org/assets/images/logo400x400.jpg --- Global Navigation Satellite Systems receiver defined by software. It performs all the signal processing from raw signal samples up to the computation of the Position-Velocity-Time solution, including code and phase observables. It is able to work with raw data files or, if there is computational power enough, in real time with suitable radiofrequency front-ends. This software is mainly developed at [CTTC](http://www.cttc.es "Centre Tecnologic de Telecomunicacions de Catalunya") with contributions from around the world. More info at [gnss-sdr.org](https://gnss-sdr.org "GNSS-SDR's Homepage").