SOFIC 2011, the Special Operations Industry Conference held in Tampa, Florida, received a lot of attention this year for several reasons. First, the apprehension and death of Osama Bin Laden by the Navy SEALs was a national attention grabber. Second, as irregular warfare becomes the norm, there is a growing need for unconventional operations. As a result, the Special Operations community... read more
As touchscreens get larger in vehicles, so does the thought that location-based services should be included. At the Telematics Detroit 2011 conference, while most industry observers say that some sort of advertising will soon be in every vehicle, not everyone is sold on having advertising flashed to drivers as they go by a business. read more
Performance of Multiplexed Binary Offset Carrier Modulations for Modernized GNSS SystemsA candidate for modernized GNSS civil signals in the L1/E1 band was BOC(1,1), a binary-offset-carrier signal with a "split spectrum" that has negligible impact on the existing GPS signals. However, a signal with better acquisition capabilities and improved multipath performance (while still compatible with the existing GPS signals) is a multiplexed BOC modulation, MBOC(6,1,1/11). The MBOC spectrum can be achieved by following one of several different signal-construction paths with some resulting differences in how a receiver tracks the signal and its associated performance. read more
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. October 18, 1989, the... read more
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
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
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
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