gnss-sdr/gnss-sdr
GNSS-SDR, an open-source software-defined GNSS receiver observed · 2026-08-28
Health v2 · maintenance only
81/100
- Activity 99
- Release rhythm 47
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 376
- age_days: 4525
- days_rel: 141
- days_push: 7
- n_releases_24m: 2
Adoption not part of the score
2216 stars · 726 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
An open-source software-defined GNSS (Global Navigation Satellite System) receiver implemented in C++ on top of GNU Radio. It processes raw RF samples from a wide range of front-ends to perform acquisition, tracking, telemetry decoding, observables computation, and position fixes for GPS, Galileo, GLONASS, BeiDou, and QZSS signals.
Use cases
- compute GPS/Galileo position fixes from raw signal samples
- process RTL-SDR or other RF front-end recordings into PVT solutions
- research and prototype custom GNSS signal processing chains
- decode navigation messages from GPS L1 C/A, Galileo E1b/c, GLONASS, BeiDou signals
- run a software GNSS receiver on embedded Linux devices
- inspect and monitor internal receiver channel parameters in real time
- cross-compile a configurable GNSS receiver for custom hardware
When to choose
- you need a fully open-source, inspectable GNSS receiver with configurable processing blocks
- you want to experiment with multi-constellation, multi-frequency GNSS signals (GPS, Galileo, GLONASS, BeiDou, QZSS)
- you need to process raw IF samples from files or a variety of RF front-ends
- you are doing GNSS research, education, or algorithm prototyping on commodity hardware
- you need a receiver that runs on embedded GNU/Linux platforms
When to avoid
- you just need a plug-and-play navigation solution with a standard NMEA output from a commercial GNSS chip
- you require certified, safety-critical positioning with guaranteed performance
- you need real-time processing of high-bandwidth signals on very resource-constrained hardware without tuning
- you want a simple GUI-driven consumer GPS application rather than a configurable signal processing framework
Facets
application · maturity active
sdk developer-tools embedded-systems hardware cross-platform cpp gnss software-defined-radio gps galileo glonass beidou gnuradio rtl-sdr positioning rtklib pvt-solution signal-acquisition signal-tracking navigation-message-decoding research-tool signal-processing real-time research linux macos
10 sources
- readme: https://github.com/gnss-sdr/gnss-sdr · fetched 2026-08-28 · 45b745805aff
- homepage: https://gnss-sdr.org · fetched 2026-08-29 · 503a0c2aff2c
- site_page: https://gnss-sdr.org/docs · fetched 2026-08-29 · f6a93966f30d
- site_page: https://gnss-sdr.org/about · fetched 2026-08-29 · e800b8ee7715
- site_page: https://gnss-sdr.org/build-and-install · fetched 2026-08-29 · 5194195bbd03
- site_page: https://gnss-sdr.org/docs/sp-blocks · fetched 2026-08-29 · cc1200177468
- site_page: https://gnss-sdr.org/docs/tutorials/monitoring-software-receiver-internal-status · fetched 2026-08-29 · c32704ff003f
- site_page: https://gnss-sdr.org/docs/tutorials/testing-software-receiver-2 · fetched 2026-08-29 · 0ba55981dfe8
- site_page: https://gnss-sdr.org/docs/tutorials/testing-software-receiver · fetched 2026-08-29 · 378622b3687c
- site_page: https://gnss-sdr.org/docs/tutorials/configuration-options-building-time · fetched 2026-08-29 · b7471e72971e
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| gnss-sdr/gnss-sdr | main | 81 |
For agents
markdown · JSON · MCP: product_card(name="gnss-sdr/gnss-sdr")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem