Opinions

Occupy Media Space Now EGNOS and Galileo Mission

June 29, 2014By

By Peter de Selding The message to the recent European Space Solutions conference in Prague was simple enough: EGNOS is here, so let’s use it; Galileo is almost here, so let’s promote it. Neither task is straightforward. Take the European Geostationary Navigation Overlay Service (EGNOS), the European piece of a near-global network of terminals on geostationary satellites linked to networks... read more

GPS Industry Breathes Sigh of Relief

June 25, 2014By
LightSquared-spectrum-W

The U.S. Federal Communications Commission convened a June 20 workshop on “GPS Protection and Receiver Performance” whose bite turned out to be far less than its bark had led some in the GPS industry to fear. The hastily assembled workshop — three weeks notice was given — appeared at first notice to derive from the call for “GPS receiver performance standards”... read more

Regulating Navigation and Mapping Apps?

June 24, 2014By

Steven Spriggs was pulled over by a motorcycle cop for using his iPhone while driving. He immediately held it up to show the officer that he was using Apple Maps, and not talking or texting. More about Mr. Spriggs later. With approval of the pending transportation bill in Congress, smartphone maps and navigation will be regulated. The National Highway Traffic... read more

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

Intel’s Mini-PC: A Cheap Server for an RTK Base

June 23, 2014By

I’ve written this many, many times in the past eight years that I’ve written for GPS World magazine, but I have to write it again — this is an exciting time for GNSS! For me, high-precision GNSS is particularly exciting. I’ve been traveling like crazy, and involved in a number of really fun projects that incorporate high-precision GNSS. Of course,... read more

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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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Expanding Our System of Systems

May 30, 2014By

Putting GNSS into use within much larger aggregates of systems shows the greatest promise yet for earthly good. Goodness knows, we have experienced plenty of benefit from GPS applied over 25+ years, from back-up and fill-in provided by GLONASS, and with further synergy anticipated from Galileo and BeiDou.  But we ain’t seen nothing yet. Two presentations this month at the... read more

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