Global Navigation Satellite Systems Engineering, Policy, and Design
The European Space Agency (ESA) has initiated two innovative navigation missions, Genesis and LEO-PNT, as part of its FutureNAV program, with contracts totaling €233 million awarded to several European entities. This strategic move is aimed at addressing the growing demand for more resilient and precise navigation solutions in Europe.
By Inside GNSS
After recently completing Critical Design Review (CDR) for the Military GPS User Equipment (MGUE) Increment 2 Miniature Serial Interface (MSI) program, BAE Systems is ready to move on to the next phase: implementing the advanced military GPS receiver and next-generation semiconductor.
By Renee Knight
Just five months ago, the U.S. Department of Transportation, Office of the Assistant Secretary for Research (DOT/OST-R), Volpe Center issued a 15-day quick-turn Request for Information (RFI), which was subsequently extended for an additional 15 days, to industry seeking feedback on the availability of operationally ready (Technical Readiness Level or TRL ≥ 8) complementary positioning navigation and timing (CPNT) technologies to meet critical infrastructure needs when GPS service is not available, degraded or disrupted.
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
The payload will augment existing GNSS constellations with additional navigation signals from LEO, while relying on GNSS for orbit determination and time synchronization.
By Inside GNSS
This study examines the frequency, type and severity of interference events at specific locations in the country, providing valuable insights into the use of detectors, the nature of interference encountered, their potential sources and the impact on GNSS-derived positions.
By Inside GNSS
A look at recent testing and the advantages of using KF tracking to process GNSS meta-signals.
By Daniele Borio and Melania Susi
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.
By Peter Gutierrez
Through a series of four vehicle experiments leveraging low-cost GNSS/IMU sensors, the findings from this research indicate that low-cost HAS PPP solutions can yield results comparable to those obtained using CNES ultra-rapid products at the 68th percentile of errors.
By Inside GNSS
A comparison against classic models.
By Inside GNSS
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.
By Peter Gutierrez
NTS-3 Satellite Prepares for Launch to Experiment with Ways to Improve GPS.
Nearly 50 years ago, there were no smart phones, no GPS-guided weapons, no turn-by-turn direction systems in automobiles.
By Brett Davis
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?
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
SpaceX recently signed an agreement with the European Space Agency (ESA) to launch four Galileo satellites on its Falcon 9 rocket next year.
By Inside GNSS
