April 8, 2021

Top Shelf: New Authoritative Compilation of PNT Technologies in the 21st Century

A new tome — make that two new tomes — join the bookshelf of essential and authoritative references for GNSS users, while widening the umbrella a good deal to cover all PNT technologies, their sensors and their integrations. Edited by four leading lights of the community and assistant-edited by two more, its list of authors rounds up another 131 of the “usual suspects,” the names that are seen repeatedly in the presentations at technical conference and on their organizing boards. In every one of 64 subject matters, the author(s) is/are recognized experts, in many cases the recognized expert, on the material.

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By Alan Cameron
February 9, 2021

Charles Cahn, GPS Pioneer, 1929-2021

Dr. Charles R. Cahn, an important early and continuing contributor to GPS signal and waveform design, passed away in January 2021. His accomplishments spanned a lifetime of contributions to GPS signal and receiver developments.

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By Inside GNSS
January 22, 2021

DOT Report on Backup PNT Technologies Finds NextNav Performs Best, Calls for Synthesis and Synergy

The Department of Transportation (DOT) submitted its “National Timing Resilience and Security Act: Roadmap to Implementation” report to Congress in mid-January. Following a competitive application process, demonstrations and review of 11 candidate technologies to back up GPS capabilities, the DOT concluded that “none of the systems can universally backup the positioning and navigations capabilities provided byGPS and its augmentations.” However, “all vendors demonstrated some PNT performance of value, but only one vendor, NextNav, demonstrated in all applicable use case scenarios.”

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By Inside GNSS
November 6, 2020

GPS III 04 Spaceborne; Rocket Returns to Earth for Re-use

The U.S. Space Force, Space and Missile Systems Center (SMC) and its mission partners successfully launched the Lockheed Martin-built fourth GPS III satellite at 6:24 p.m. Nov. 5 from Space Launch Complex 40 at Cape Canaveral Air Force Station, Florida. The satellite was carried to orbit aboard a Space Exploration Technologies Corporation (SpaceX) Falcon 9 launch vehicle.

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By Inside GNSS
November 5, 2020

GPS Satellite Launch Company Acquired by Large Defense Contractor

Parsons Corporation has entered into a definitive agreement to acquire Braxton Science & Technology Group (BSTG). Braxton Technologies‘ Launch, Anomaly Resolution, and Disposal Operations (LADO) system has been a key part of GPS satellite launches since 2007. LADO has performed all the mission planning, commanding and telemetry processing necessary to prepare all GPS satellites for operational use.

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By Inside GNSS
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