Global Navigation Satellite Systems Engineering, Policy, and Design
This major shift in architectural framework would spatialize core SBAS components within a distributed network of LEO satellites.
By Inside GNSS
Locata CEO Nunzio Gambale explains why fielding complementary PNT solutions is about much more than just backing up GPS, and why PNT resilience has become an ecosystem problem.
By Inside GNSS
Building assured PNT for the fight we are actually in.
By Inside GNSS
He spoke with Inside GNSS about what Xona’s Pulsar means for the future of resilient PNT.
By Inside GNSS
In 2017, the main message at the Munich Satellite Summit was clear: GNSS needs a backup. Nearly 10 years later, the message hasn’t changed; we may have more tools available but very little progress has been made—while the threat to GNSS only continues to grow.
By Dana A. Goward
GNSS interference is no longer a distant concern or a technical edge case. As jamming, spoofing and autonomy requirements expose the limits of today’s PNT architectures, LEO is emerging as one of the most important alternatives to understand.
By Zak M. Kassas
Over the next six issues, Dr. Güenter W. Hein will critically review the development of Galileo, drawing on more than two decades of direct experience with Europe’s satellite navigation system. But this series is not simply a look back. Galileo’s history is also a study in geopolitics, technical ambition, institutional complexity, international cooperation, spectrum management and interoperability—issues that remain central to today’s global PNT aspirations.
By Günter W. Hein
The U.S. Space Force has cancelled the GPS Next Generation Operational Control System program after integrated systems testing revealed pervasive technical failures that the government and Raytheon were unable to resolve on an operationally relevant timeline.
By Inside GNSS
This sets the stage for the GPS IIIF satellites currently being produced by Lockheed Martin.
By Inside GNSS
Existing and future GNSS receivers must be able to operate reliably when multiple LEO PNT signals are present, with the opportunity for LEO PNT to become interoperable with GNSS MEO in the same way multi-constellation receivers use signals from different MEO GNSS systems today.
By Inside GNSS
How GNSS-reflectometry is transforming land-fast ice monitoring.
By Inside GNSS
A look at integrity and continuity concepts of a dual navigation architecture developed for civil aircraft during precision approaches.
By Inside GNSS
From IMU fundamentals to low-SWaP-C system design, experts explain how tightly integrated GNSS-INS is delivering resilient navigation when satellite signals are degraded, intermittent or denied.
By Renee Knight
