Columns and Editorials Archives - Inside GNSS

Columns and Editorials

December 27, 2019

Lawmakers Approve Nearly Full GPS Budget

Hours before an impending government shutdown, the President signed both the defense appropriations and authorization bills on Friday, December 20. The bills funded nearly all of the Air Force’s GPS program but made substantial cuts in Army GPS receiver development.

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By Dee Ann Divis
December 20, 2019

DoD on Innovation Fast Track: Views Of Top Pentagon PNT Managers

Reducing the number of GPS receivers installed or carried while tapping multiple PNT sources.

Prototyping and beta testing are techniques closely associated with Silicon Valley, the innovation engine admired around the world and, in particular, inside the Pentagon. Simply introducing a new idea has been known to take years in these halls; witness the long introductory saga of GPS itself in the 1970s.

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By Dee Ann Divis
October 1, 2019

Ivan Revnivykh: Bringing Russian GNSS to the World

Ivan Revnivykh’s life and experience encompass the far frontiers of his homeland, Russia, from the magnifi cent landscapes of the country’s Pacifi c coast to research stations in Antarctica, to the great capital city of Moscow where he lives and works today. To everything he does he brings a sense of excitement and adventure.

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By Inside GNSS

Lessons to be Learned from Galileo Signal Outage

Every GNSS has experienced a failure. On January 26, 2016, an error in the GPS data upload system caused incorrect data to be transmitted from the satellites on the L1 band used by most commercial GPS receivers. Th e problem was resolved within six hours, although some users experienced problems for as much as twelve hours. Th e next day, the US Air Force (USAF) released a full statement explaining that the problem was caused by ground system soft ware when one satellite was decommissioned.

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By Inside GNSS
September 30, 2019

Ultra-Wideband Re-Emerges As GPS Interference Issue

Seventeen years after federal regulators restricted a promising wireless technology to protect GPS and other spectrum users, they are being asked to loosen those limitations. Ultra-Wide Band (UWB) proponents insist the strictures are too tight and cut off their ability to innovate. In June, Robert Bosch LLC formally requested the Federal Communications Commission (FCC) do what it said it would do back in April 2002: reexamine controls on UWB that the FCC itself called “extremely conservative” when they were written. The request is not to change the rules—not just yet anyway—but for the FCC to launch a rulemaking process that could eventually lead to changes in the rules. And Bosch wants a lot of changes.

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By Inside GNSS

Detecting and Geolocating Jammers and Spoofers

Due to the proliferation of personal privacy devices and other jamming sources, it is imperative for safety-critical GNSS users such as airports and marine ports to be situationally aware of local GNSS interference. This article proposes and validates an enhanced method for geolocating GNSS interference sources so that jammers and spoofers can be found and disabled.

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By Inside GNSS
September 29, 2019

Galileo Hits the Spot

The introduction of a new generation of mass-market chips based on multi GNSS dual frequency measurements, already being commercialized and integrated in smartphones by major manufacturers, is contributing to a new level of positioning accuracy in the mass-market location-based services.

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By Inside GNSS
September 21, 2019

Detecting and Geolocating Jammers and Spoofers Using Integrated AOA and TDOA Measurements

by Joon Wayn Cheong, Andrew G. Dempster, Joe Fleming, Ming Zhu & Graeme Hooper

Due to the proliferation of personal privacy devices and other jamming sources, it is imperative for safety-critical GNSS users such as airports and marine ports to be situationally aware of local GNSS interference. This article proposes and validates an enhanced method for geolocating GNSS interference sources so that jammers and spoofers can be found and disabled.

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By Inside GNSS
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