Global Navigation Satellite Systems Engineering, Policy, and Design
The National Association of Broadcasters (NAB) is sharpening its focus on developing the Broadcast Positioning System™ (BPS) as a timing service and then progressing it into full positioning, navigation and timing (PNT). NAB is proposing BPS as a complementary terrestrial service to GPS.
By Dana A. Goward
The companies are introducing IroNav, an alternative navigation system that combines visual navigation with GNSS anti-jamming to keep small UAVs on mission when satellite signals are disrupted or unavailable, according to product information.
By Inside GNSS
After years of development and large-scale testing, Galileo’s Open Service Navigation Message Authentication (OSNMA) is no longer an experimental signal but a fully declared service, confirming Galileo’s position as the world’s first civilian GNSS to provide cryptographically authenticated navigation data.
By Peter Gutierrez
Resilient GPS (R-GPS), an experimental plan to add a proliferated layer of small navigation satellites on top of the core GPS constellation, has been terminated, according to reporting by SpaceNews. Early design work from multiple contractors will be used to inform future architecture decisions, but no on-orbit demonstrations are moving forward.
By Inside GNSS
Satellite-based augmentation systems (SBAS) such as EGNOS, WAAS and MSAS have been quietly underpinning safety-critical navigation for decades, delivering correction and integrity data that enable more accurate and dependable GNSS positioning.
By Peter Gutierrez
The European Space Agency (ESA)’s pioneering Low Earth Orbit Positioning, Navigation and Timing (LEO-PNT) demonstration mission, officially known as ‘Celeste’, has slipped past its original late-2025 launch target.
By Peter Gutierrez
Low Earth Orbit Navigation System (LEONS) milestone advances commercial LEO PNT and reduces satellites’ reliance on legacy GPS signals.
By Inside GNSS
On 13 January 2026, Europe’s Copernicus Earth-observation program carried out a planned reconfiguration of the GNSS receiver aboard the Sentinel-3B satellite, a low-profile engineering activity that nevertheless illustrates how deeply Galileo-based positioning and timing now underpin European Earth-observation services.
By Peter Gutierrez
The European Space Agency (ESA)-funded project ‘Lithium niobate photonic integrated circuit based high-speed, low voltage modulators for microwave photonics’ has demonstrated a new class of ultra-high-performance optical modulators with direct relevance to future positioning, navigation, and timing (PNT) systems.
By Inside GNSS
New multi-year initiative seeks long-endurance unmanned survey platforms to collect high-precision geomagnetic data and enable magnetic navigation across trans-oceanic routes.
By Inside GNSS
Over the past year, Brussels-based Agilica BV has completed major milestones in the ‘Safe autonomous integrated landing system for ships’ (SAILS) initiative.
By Peter Gutierrez
Qualinx announced a €20 million investment led by Invest‑NL, with additional participation from existing investors FORWARD.one, InnovationQuarter Capital and Waterman Ventures, and brings Qualinx’s total funding to date to €40 million.
By Inside GNSS
ANELLO Photonics today announced the launch of the ANELLO Aerial INS, a compact, high-performance inertial navigation system built around the company’s Silicon Photonics Optical Gyroscope technology and integrated with multi-band GNSS receivers.
By Inside GNSS
