Global Navigation Satellite Systems Engineering, Policy, and Design
Citing threats to safety, coastal nations of the Baltic and North Seas, along with Iceland, have proclaimed in an open letter they are done tolerating violations of international maritime law and norms.
By Dana A. Goward
After four years of Army and Marine Corps experiments, DARPA says its RACER autonomy stack is ready to move into DoD and commercial use, enabling off-road ground vehicles to operate at speed in complex terrain without GPS or detailed maps.
By Inside GNSS
Safran Federal Systems announced the successful flight demonstration of its Blacknaute™ Inertial Navigation System (INS) aboard a U.S. Army UH-60 Black Hawk helicopter.
By Inside GNSS
The Pentagon’s APFIT program is providing $20 million in procurement funding to scale Anello’s silicon-photonics inertial navigation systems for GPS-contested and GPS-denied environments, the company said.
By Inside GNSS
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
