\fBgnss\-sdr\fR is a Global Navigation Satellite Systems Software Defined Receiver written in C++. It implements all the signal processing chain, taking as input raw samples coming from the output of an Analog\-to\-Digital Converter, and processing them up to the computation of the Position\-Velocity\-Time solution, including the generation of code and phase measurements.
\fBgnss\-sdr\fR is able to work with raw data files or, if there is computational power enough, in real time with suitable radio frequency front\-ends. The whole receiver is defined in a single configuration file, and therefore users can define theirs.
\fB\-signal_source=\fR\fI<path\-to\-raw\-signal\-file>\fR If defined, path to the file containing the signal samples (overrides the data file specified in the configuration file).
This software package has been developed at CTTC (Centre Tecnologic de Telecomunicacions de Catalunya, http://www.cttc.es) with contributions from around the world.