MPHW – Multipath Hardware, an open-source low-cost sensor for SNR-based GPS/GNSS Reflectometry (GNSS-R)

Open source SDR 4G/5G software suite from Software Radio Systems (SRS)

Cross-Platform SDR Software

GNSS-SDR, an open-source software-defined GNSS receiver

Forked from Beagle_SDR_GPS for specialised add-on SDR board with 16-Bit ADC which improved from KiwiSDR.

An Open-source Package for GNSS Positioning and Real-time Kinematic Using Factor Graph Optimization

C++ version of GPS-receiver

CUDARecv and PyGNSS: open-source DPE-based GPS receiver software developed by the Stanford NAV Laboratory

Processing / plotting of RINEX based GPS & Galileo data

multi-sdr-gps-sim generates a IQ data stream on-the-fly to simulate a GPS L1 baseband signal using a SDR platform like HackRF or ADLAM-Pluto.

simulate GPS signal like gps-sdr-sim with an UI

The goal of the GPSTk project is to provide an open source library and suite of applications to the satellite navigation community--to free researchers to focus on research, not lower level coding.

A repository for PyGNSS and CUDARecv -- open-source software defined GPS receivers developed by the Grace Gao Research Group.

gps-sdr-sim with realtime tcp stream output that can connect to gnuradio.

Some efferts on GPS replay, receive and test.

An open autonomous driving platform

Software Defined Radio running on STM32 processor.

Real-time Orbit determination and ClocK Estimation Toolkit

Process Piksi data to do GNSS reflectometry

Precise orbit determination software for Earth and Planetary satellites, including orbit and observable simulation

GNSS_MATLAB_RX modifications

An Open Source GNSS Software Defined Radio Library

Play with LTE signal (especially China TD-LTE) captured by rtl-sdr

Open source GPS receiver based on USRP and GN3S