PNT Archives - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

January 18, 2024

ESA: LEO PNT A Game Changer

Speaking at the 2024 ESA Director General’s Annual Press Briefing in Paris, the agency’s Director of Navigation Javier Benedicto provided an update on ESA satellite navigation activities. About the LEO PNT (Low Earth Orbit, Positioning, Navigation and Timing) program, he said, “We have completed the procurement process for this, one of our flagship programs, approved by the [ESA] ministerial conference in November 2022.

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By Peter Gutierrez
December 26, 2023

Exploring Lunar Navigation 

As international space agencies work to develop lunar PNT capabilities, exploration efforts have become more diverse and collaborative than ever before. The Moon is now an international exploration priority, with GNSS critical to lunar PNT development.

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By Renee Knight
December 11, 2023

AUSA Highlights Need for Systems with Resilient Navigation

The Association of the United States Army’s (AUSA) annual conference highlighted the growing popularity of small unmanned aircraft as well as the need to develop and refine counter-UAS systems to go up against them—all of which must operate in GPS-denied or degraded environments. Many, if not all, of the systems featured rely on precise positioning, especially in the GPS-denied environments frequently encountered on the modern battlefield.

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By Brett Davis
November 29, 2023

PNT Makes the World Go Around: The UK’s New Alternative PNT Strategy

There has never been a clearer and more widespread acknowledgement of PNT vulnerability. With its new strategy for ensuring the continuity of positioning, navigation and timing (PNT) services, the United Kingdom adds considerable impetus to a trend that has already witnessed new determination on the parts of the United States and the European Union to assess real, alternative PNT (A-PNT) and/or complimentary PNT (CPNT) solutions.

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By Peter Gutierrez
October 29, 2023

All Jammed Up, DOT Urgently Seeks Complementary PNT

For years, the U.S. Department of Transportation (DOT) has been exploring the technologies and systems necessary to provide positioning, navigation, and timing (PNT) services to complement the Global Positioning System (GPS) so that these critical services remain available even when GPS signals are disrupted. In the past few months, the department has ramped up these Complementary PNT (CPNT) efforts, from its issuance of a CPNT Action Plan in September to a related Request for Information (RFI) seeking industry input on CPNT technologies. What are these efforts, how are they going and why the sense of urgency now?

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By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
September 19, 2023

Xona Space Systems Partners with etherWhere

Low-power GNSS chipset solutions provider etherWhere has partnered with Xona Space Systems to develop a receiver that tracks Xona’s multi-frequency PULSAR signal. PULSAR, a next-generation position, navigation, and timing (PNT) service, is provided by a constellation of small, powerful low Earth orbit (LEO) satellites that are 20 times closer to Earth than existing GPS.

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By Inside GNSS
September 11, 2023

Washington View: AAM Navigation

NASA is seeking PNT requirements for advanced air mobility when GPS is not available, but the ultimate solution may come in many forms.

At the recent FAA AAM Summit, NASA’s Parimal Kopardekar, one of the main movers in the advanced air mobility field, was asked to name some of the top operational challenges facing AAM in the near term.

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By Brett Davis
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