Opinions

EGNOS Dream Now a Reality

June 29, 2015By
EGNOS demonstration equipment aboard a new Airbus A350 WXB.

Toulouse, France, an aerospace city and the center of the French aerospace industry, was the birthplace of EGNOS, Europe’s satellite-based augmentation system (SBAS), in 1994. So it was appropriate that the first-ever EGNOS Flight Event was organized there in May by the European GNSS Agency (GSA) and the European Commission. EGNOS is the acronym for European Geostationary Navigation Overlay Service.... read more

eLoran Progresses Toward GPS Back-Up Role in U.S., Europe

June 25, 2015By
eLoran-restart-W

As of June 19, eLoran is on the air in the United States. The low-frequency signal emanates from a former U.S. Coast Guard Loran Unit in Wildwood, N.J., which sports a 625-foot signal mast that has been out of action for five years. The signal is receivable at distances of up to 1,000 miles. The eLoran navigation and communications signal is difficult to disrupt; further, it could be an important part of enabling UAVs to fly safely in our airspace. read more

Autonomous Vehicles Face Privacy, Security and Liability Issues

June 24, 2015By

Plus: Resurgence in indoor location-based marketing, ITS America annual meeting report
Autonomous vehicle technology has made industry-smart people pause and think what the consequences will be if cars and other platforms drive themselves. Will there be a huge increase in traffic when everyone decides to call their cars to grab a loaf of bread at a store? Many of these topics were discussed at the ITS America annual meeting held in Pittsburgh May 31-June 3. In other location news, there seems to be a resurgence in location-based marketing and indoor positioning conferences, leading one to believe that large retailers are finally taking notice. read more

Will China Win the Automated Vehicle Race?

June 24, 2015By

By Janice Partyka The race for the automated vehicle is on. This time, it’s not about whether automotive OEMs or tech will own the vehicle. It’s a battle between Baidu, China’s web giant, and Google, and it isn’t clear who will win. Baidu has announced it will launch an unmanned car in the second half of this year. Despite speculation... read more

The Remaking of Hemisphere

June 17, 2015By
ATLAS-Launch-1-howworks-W

When Beijing UniStrong Science & Technology in China acquired the Hemisphere GPS OEM business in January 2013, and the significant Hemisphere GPS agriculture business split under the new AgJunction name, people may have gotten the impression that the OEM business was weakened by the break-up. But with some of the brightest innovators and developers in the GNSS OEM business, Hemisphere has a wealth of experience and a store of intellectual property as a part of the new organization — and the new Athena and Atlas. read more

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The Internet of Everything: It’s All in the Timing

June 10, 2015By
Pocketwatch

40th Annual NIST Time and Frequency Metrology Seminar
The NIST T&F Metrology Seminar is one of a kind — easily the best in the world for time and frequency metrology. There are so many exciting discoveries concerning time and how time applies to our everyday lives, especially to GPS — all PNT systems actually. Consider that the NIST Time and Frequency distribution system delivers NIST Internet time over the Internet at the rate of 8 billion requests per day from servers at 25 locations across the United States. And that's just the beginning of this tale as old as time. read more

Establishing Orthometric Heights Using GNSS — Part 1

June 3, 2015By
David B. Zilkoski

Editor’s Note: This month, we introduce a column by David B. Zilkoski, one of our two new Survey Scene editors. Zilkoski has worked in the fields of geodesy and surveying for more than 40 years, including serving as director of the National Geodetic Survey. See his full bio at the end of this article. He is joined by coeditor David Doyle, who contributed the May column. The Three Types of... read more

Expert Advice: Low-End Jam Resilience May Not Be Desirable

May 29, 2015By
Jan Wendel

At the European Navigation Conference held in Bordeaux, France, April 7–10, a keynote session and ensuing panel discussion addressed the issue of “GNSS Resilience for Terrestrial and Naval Applications.” During the discussion, two questions from the floor drew these responses from panelist Jan Wendel of Airbus Defence & Space GmbH, a leading European aerospace company. read more

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