Newsletter Editorials

High-Level Perspective on PNT Frontiers

January 1, 2013By

New Technology, New Applications, New Science from the Stanford Symposium By James D. Litton The sixth annual Stanford PNT Symposium in November brought together a select group of experts to share insights from the latest research, developments, and proposals, GNSS and non-GNSS, that show promise for the international community. Among other noteworthy presentations, we heard Brad Parkinson’s suggested incremental system... read more

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Galileo and Compass: A Tale of Also-Runnings

December 19, 2012By

Beating up the backstretch neck and neck, tied for third in the GNSS race, Galileo and Compass today offer some signals and some satellites to GNSS users — as long as those users are researchers. Galileo has more going for it in the way of signals, while Compass holds an edge in the number of satellites. Without an interface control... read more

Future Visions from the GNSS Oscar Winners

October 3, 2012By

At the magazine’s annual Leadership Dinner, held during the ION-GNSS Conference, we gave the first GNSS Leadership Awards to four individuals for their respective work in the four fields of satellites, signals, services, and products. We asked each recipient to give us a vision of the future: upcoming work, whether that’s something they plan to undertake or they think someone... read more

The Patent Brouhaha

June 28, 2012By

Two British technologists backed by the U.K. Ministry of Defense have filed patents on the future interoperable GPS and Galileo signal designs that severely disrupt modernization plans for both systems and suddenly, unexpectedly place receiver manufacturers in a highly uncertain and unfavorable situation. Some of the patents have been granted in the U.K. and in Europe, and applications are pending in U.S. patent court, with a ruling expected at any time. read more

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Guest Editorial: Commercial GPS Receivers See Combat Action

May 23, 2012By

This month we present a guest column by James D. Litton, who attended the 2012 GPS Partnership Council, jointly sponsored by the Armed Forces Communication and Electronics Association and the U.S. Air Force GPS Directorate. The key topic of this year’s council quickly emerged as the tension between commercial off-the-shelf GPS receivers and official military issue; the two are used side-by-side in active military theaters. read more

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Our Man in the Baltic: Report from the European Navigation Conference

April 25, 2012By

GDANSK, POLAND — Poland has emerged as a regional leader for Eastern Europe. Among all European countries, it ranks fourth in population and ninth in the size of its national economy. This year, the European Navigation Conference (ENC), which rotates each year to a different host country, has convened in Gdansk, Poland — its first time in Eastern Europe. read more

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Navigating the Moon

March 28, 2012By

The European Space Agency has issued an intriguing Intended Invitation To Tender, “Weak GNSS Signal Navigation on the Moon.” The study will investigate use of weak-signal GPS/GNSS — and of course ESA is interested primarily in the use of Galileo — for real-time position, navigation and timing information to various future lunar assets such as automated landers, rovers, Earth-Moon transportation vehicle, in-situ navigation, and so on. read more

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Never Again? Oh, Again and Again.

February 22, 2012By

When the last English inhabitant of Virginia’s Lost Colony succumbed to hunger or swamp fever or local assimilation in 1588, Chesapeake chief Powhatan may have turned to his council and said, “Well, that’s the last of that. No more will we be troubled by outsiders infringing on our territory. Let’s get back to doing what we do best.” read more

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