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How GPS and GLONASS Got Together — and Other Recent Events

June 1, 2011 - By

The recent broadcast of the first CDMA signal from the new GLONASS-K satellite culminates a long series of events that began in 1989. A key participant gives a first-hand account of the history of many meetings, formal and informal, that created true interoperability between the two major satellite systems, giving users a modern GNSS in action. read more

This article is tagged with , , and posted in GLONASS, GNSS

Mitigation for Missiles: Fuzzy Logic and Intelligent Tracking Loops Cope with Interference

June 1, 2011 - By

A fuzzy tracking system performs as a narrow bandwidth tracking system in terms of noise reduction, and a wide bandwidth tracking system in terms of dynamic response, overcoming the contradiction between receiver bandwidth requirements using classical tracking techniques for either noise reduction or dynamic tracking. read more

This article is tagged with and posted in Defense, Precision Guidance

The System: Third Report by LightSquared/GPS Technical Working Group

June 1, 2011 - By

Plus: Locata as Alternative PNT, Indian SBAS, Galileo Launch Slow but steady progress of the Working Group (WG) convened by the Federal Communications Commission (FCC) to study the GPS overload/desensitization issue is related in the group’s Third [monthly] Pogress Report, filed with the FCC on May 16. For the third consecutive time, the report contains little in terms of actual... read more

This article is tagged with , and posted in Augmentation & Assistance, Galileo, GPS Modernization, The System

Out in Front: Business Hand at the Helm

June 1, 2011 - By

I met Chris Litton at my first European Navigation Conference in Sevilla, Spain, May 2001. I recall a long conversation over a dinner of Moorish and Andalusian dishes, attended by the staffs of NavCom Technology and GPS World, in the Mesón Don Raimundo. Over the years we met again and again at conferences hither and yon. “Great cities of the world!” became our greeting. I’m very happy to announce that we now play on the same team — to your ultimate benefit. Meet J. Christopher Litton, international account executive and ad manager for GPS World magazine, website, e-newsletters, webinars, and the whole enterprise. read more

This article is tagged with and posted in From the Editor