A simple SDR console application
SDR client and server for low bandwidth remote operation
Command line receiver for unattended operation
Transmit support (planned for v2 in 2018)
Primarily targeting Linux desktop and SBCs with limited resources
Written in cross-platform C/C++
Easy deployment thanks to minimal external dependencies
Nanosdr is still a work in progress with initial public release expected around the end of 2017
A collection of free (GPL) tools to process GPS-related data (RINEX files, etc.) written in C++. Includes bindings to Octave. The goal of the GPSTk project is to provide a open source library and suite of applications to the satellite navigation commun
C/C++ version of the orbit models used with TLE data.
Source code for astronomical calculations, including satellite orbits.
See also https://github.com/Bill-Gray/sat_code/ which is licensed under the GPL V2.