Columns and Editorials Archives - Page 9 of 37 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

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.

By Dee Ann Divis

November 26, 2019

Lamplights Glisten in the Cold As We Reflect Back—and Forward

Yuletide cheer laces the Scottish atmosphere as we examine what’s been accomplished and what’s yet to be done. This year’s International Navigation Conference in Edinburgh provides a focal point.

By Peter Gutierrez

The Industry, the Community, the Art, the Technology: A High-Level Perspective on GNSS and PNT

To gauge the present state of mind of the GNSS and PNT community, the state of play in application development, and the state of the art in positioning, navigation and timing technology, we asked four international experts for their perspectives. Here are the questions posed to them.

By Inside GNSS

Set the Controls for the Heart of the Future

Very occasionally, history repeats itself, in oddly nuanced ways. I stand today at such a juncture. Nineteen years ago Glen Gibbons, the founder of this magazine, hired me as his lieutenant for another satnav publication—for which he was also the founding editor.

By Alan Cameron

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.

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.

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.

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.

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.

By Inside GNSS

September 23, 2019

Galileo Hits the Spot: Testing GNSS Dual Frequency with Smartphones

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.

By Paolo Crosta et al.

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.

By Inside GNSS

September 19, 2019

GNSS Transceiver: Simulation Accuracy Assessment of Using a Vector-Tracking Receiver as RF Constellation Simulator

In this article, the authors use a vector tracking approach to convert a software receiver into a software transceiver, showing that this effort is both feasible and easily realized. The basic concept is presented with an accuracy assessment of the error sources and generated signal quality is compared to theoretical lower limits.

Brussels View: Lessons to Be Learned From Galileo Signal Outage

July 2019 was a difficult month for the Galileo program. A system-wide technical failure that took a week to resolve was compounded by a communications breakdown that dismayed its supporters. For the European Commission, the road back will be difficult, but it is a road worth traveling.

By Peter Gutierrez

Columns and Editorials

Lamplights Glisten in the Cold As We Reflect Back – and For...

Standalone and RTK GNSS on North American Highways...

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

Lamplights Glisten in the Cold As We Reflect Back—and Forward

The Industry, the Community, the Art, the Technology: A High-Level Perspective on GNSS and PNT

Set the Controls for the Heart of the Future

Ivan Revnivykh: Bringing Russian GNSS to the World

Lessons to be Learned from Galileo Signal Outage

Ultra-Wideband Re-Emerges As GPS Interference Issue

Detecting and Geolocating Jammers and Spoofers

Galileo Hits the Spot

Galileo Hits the Spot: Testing GNSS Dual Frequency with Smartphones

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

GNSS Transceiver: Simulation Accuracy Assessment of Using a Vector-Tracking Receiver as RF Constellation Simulator

Brussels View: Lessons to Be Learned From Galileo Signal Outage