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Pharos is a GNSS IF signal simulator

An efficient and robust multisensor-aided inertial navigation system with online calibration that is capable of fusing IMU, camera, LiDAR, GPS/GNSS, and wheel sensors. Use cases: VINS/VIO, GPS-INS, LINS/LIO, multi-sensor fusion for localization and mapping (SLAM). This repository also provides multi-sensor simulation and data.

The #1 open-source Android GNSS/GPS test program

ROS driver for NovAtel GPS / GNSS receivers

Net_Diff is a software for GNSS Download, Positioning and Analysis.

integrated navigation for ins and gnss

An open‑source software for Multi-GNSS PPP ambiguity resolution

gnss/imu localization using kalman filter

A multi-stage GNSS signal and data simulator

FGI-GSRx Open Source multi-GNSS software receiver

🛰️ ESP32 Based GPS Navigator with OSM offline maps. Multi GNSS

Modern C++ GNSS/RTK/PPP/CLAS toolkit.

Autonomous UAV navigation in GNSS-denied indoor spaces with no prior map: stereo VIO (MSCKF) and lidar-inertial odometry with map-based relocalization (SLAM), 3D occupancy mapping, D* Lite path planning and GPU MPPI obstacle avoidance. PX4 + ROS 2 + Gazebo SITL, DARPA SubT Urban.

Free SDR receiver for macOS, Windows and Linux: digital TV (DVB-T/T2, DVB-C, DVB-S/S2, ATSC, ISDB-T, DTMB), DAB+, FM, DRM, aviation (ADS-B, ACARS, VDL2), satellites, GNSS, ham modes (FT8, PSK31, CW), digital voice, cell towers and a spectrum analyser. HackRF, RTL-SDR, Airspy, SDRplay, BladeRF, LimeSDR, Pluto, USRP.