Opinions

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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European Court Rules on Privacy — Is Location Next?

May 29, 2014By
google-after

The highest court in the European Union has granted the right to be forgotten by a search engine. Will location privacy be next on the docket? We are seeing the beginnings of the in-car smartphone-type apps market and are watching for approaching hockey-stick style growth that is a year or two away. Google has added rich, engaging features to maps.... read more

GPS/GLONASS Dispute: CEO Clarifies Misunderstandings

May 23, 2014By
LD-Javad

“Use any opportunity to create friendship and peace,” urged Javad Ashjaee, president and CEO of JAVAD GNSS, in a May 23 conversation with journalists. He decried the recent controversy about monitoring stations on both U.S. and Russian soil, saying it was based in misinformation and misinterpretations, inflated by a political crisis in a completely different area. “This [GNSS] is a... read more

New Signals, New Launches, and Faulty GPS Receivers

May 22, 2014By
The two Galileo satellites in the clean room.

There has been a lot of GNSS-related news in the past month, so I thought I’d do a quick review of the top stories, including L2C and L5 CNAV messages, launch of a new GPS IIF satellite, and Russian threats to disrupt GPS. read more

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