awesome-gnss

Lists Android devices that support raw GNSS measurements as well as documentation for

Discussion of dual-frequency GNSS support on Android, including screenshots showing device support for dual-frequency in GPSTest.

Discussion of Google's

Description of Google's improvements to the fused location provider using 3D mapping aided corrections.

Discussion of

Overview on Global Navigation Satellite systems and on Synthetic Aperture Radar

Datasets collected from multiple Android phones, accompanied with high accuracy ground truth. This dataset has 39 traces collected from Pixel 4, Pixel 4 XL, and Xiaomi Mi8. They contain CN0, carrier phase, Doppler rate, satellite transmit time, signal arrival time, and other raw GNSS measurements of L1, L5 channels from GPS, Galileo, GLONASS, Beidou, and QZSS. Precise location ground truth files collected using NovAtel SPAN system are provided. Part of the

A list of device capabilities (e.g., supported GNSS constellations and carrier frequencies) crowd-sourced from users of the

A network of u-blox receivers in France. Archived data is available

An Open-Sourcing Localization Dataset Collected in Asian Urban Canyons, including Tokyo and Hong Kong.

Open source GPX tracker app written in Swift.

An experiment at gathering data from an iPhone to test the Core Location API and its various settings.

Technical discussions related to GNSS data processing.

Practical engineering notes on GNSS fundamentals, pseudorange, signal bands, RTCM/NTRIP correction workflows, NMEA 0183, and coordinate systems for RTK integration.

Using RTKLIB for precise positioning with low-cost GNSS receivers.

support for CGGTTS (special PVT) solutions in Rust. Includes both a file parser and a sky tracker for CGGTTS track scheduling. CGGTTS is used in remote clock comparison, by mean of common satellite vehicle in sight.

A lightweight port of the GeoTools

ESP32 GPS Controller, with support for USB Serial, Bluetooth, RTK Corrections, NTRIP Caster/Server/Client and ESP-Now forwarding.

A ROS 2 UKF fusing GPS, IMU, and wheel odometry with adaptive noise estimation and outlier rejection for robust outdoor robot localization.

RINEX files parsing and generation as a Rust library. Python bindings are under development.

SINEX files parsing.

C++ open source library and a suite of applications for GPS processing problems.

An Open Source Program Package for GNSS Positioning. Has a companion Android app

Open source software for Hatanaka compression/restoration of RINEX observation files.

An Open-source application to process RINEX data. It integrates several post processing algorithms, a Precise Position solver (SPP/PPP) and the formation of CGGTTS (special PVT) solutions for remote clock comparison.

Quality checks for GNSS data in RINEX2/3 format. Basic version is free and open-source, Pro and Real-time features available at a cost.

Performs precise modeling of GNSS observables (pseudorange and carrier phase) at the centimetre level, allowing both standalone GPS positioning and PPP. Supports RINEX-3.00, SP3, ANTEX and SINEX, as well as GPS, Galileo, and GLONASS. Developed under an European Space Agency (ESA) contract by the Universitat Politecnica de Catalunya (UPC). Free to download.

Supports various translation, conversion, and quality check operations on RINEX data.

Software-defined GNSS signal simulator that drives a commodity SDR (HackRF, bladeRF, LimeSDR, ADALM-Pluto, USRP). Generates GPS, Galileo, GLONASS and BeiDou signals in real time, supports moving trajectories, and can record and replay live sky signals. Free tier available, paid tiers for longer daily runtime and additional constellations.

Translation, editing, and quality check of GNSS data in native and in RINEX/BINEX formats. Free to download. End-of-life as of February 25, 2019.

EU Agency for the Space Programme.

GNSS satellites updated status.

International GNSS Service.