From the Editor

Out in Front: The State of Our Union

August 5, 2014By
JEFF FEHLBERG, winner of the drawing for a Trimble Juno T41, grand prize in the 2013 State of the Industry Survey. You, too, can be this lucky!

Like Olympic athletes, doctors without borders, and magicians, members of the GNSS community constitute an informal international group that gathers periodically, in different centers around the world, to share knowledge and advance their craft. It is due and fitting, perhaps even necessary, that we also try to summarize or collect our views about ourselves, our field, and our future. The... read more

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Out in Front: Epic Fail

July 1, 2014By

Sometimes the patient has to get sick in order to get better. The eruption of a malady leads to identification of an underlying condition; appropriate treatment can then be devised to cure the body of its ills. Sound like House, M.D.? As a variant on this plot line, the patient can know full well what is wrong deep down inside,... read more

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Letters: Galileo Sync, GLONASS Scoop, an Open Letter

June 23, 2014By

June Cover Story In the June issue’s cover story, “Interchangeability Accomplished,” is a paragraph headed, “Satellite Intersystem Biases,” which appears to assert that Galileo System Time (GST) is 3 seconds ahead of UTC. However, in the version of the Galileo Signal In Space Interface Control Document posted at: http://ec.europa.eu/enterprise/policies/satnav/galileo/files/galileo-os-sis-icd-issue1-revision1_en.pdf, paragraph 5.1.2 appears to indicate that Galileo System Time (GST) was synchronized, at... read more

Letters to the Editor: Of Services, Commercial and Non

June 1, 2014By
Veripos ground receiver station network.

In a comment posted to GPS World’s website on Tony Murfin’s recent column, “Hexagon’s Acquisition of Veripos: Why Did This Go Down?”, Craig Roberts of Australia wrote: Tony, I do take issue with the suggestion that the International GNSS Service (IGS) is somehow inferior and not reliable. I understand that Veripos is a commercial service designed for specific markets, but... read more

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Out in Front: How Much Farther?

May 1, 2014By

For some years now, we have been talking about GNSS interoperability. The concept has received so much careful attention at conferences, in R&D laboratories, in international working group forums, and behind closed high-level government and military doors, that one might understandably conclude that we have talked interoperability into existence. Not quite. Not nearly. Not by the farthest, if measuring into... read more

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Out in Front: Europa, Europa

April 1, 2014By
euro_map_r2

Not so long ago, we occasionally speculated on the order of GNSS preference for both manufacturers and end users. GPS first, of course. Only the most radical of future visions saw anything different. But after that? GLONASS, Galileo, BeiDou — or switch them around? A case could be made for almost any sequence, by virtue of active constellation size or... read more

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Out in Front: Who’s Been Mining My Location?

February 27, 2014By
Steve Copley, GPS World publisher.

Conventional wisdom holds that smartphone users will tolerate diluted privacy — specifically, privacy of their own location — in return for the many advantages delivered by the location-based services on their devices. This conventional wisdom, I put it to you, has been disseminated over the years by conventional wise men, that is, those selling the services and the devices. Users... read more

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Out in Front: Complements of the Season

February 1, 2014By
Alan Cameron

In the wake of last month’s Expert Advice column on eLoran — “The Low Cost of Protecting America” by Dana Goward of the Resilient Navigation and Timing Foundation —  come several positive comments and encouraging developments. Rather than rehearse all the arguments why we should care about this, I’ll repeat the one word that I heard most often in GNSS... read more