Aeroflex has introduced the GPSG-1000, a portable GPS and Galileo positional simulator. The GPSG-1000 is lightweight and configurable. It fills a gap in the market by providing a low-cost 12-channel test set that creates three-dimensional simulations, Aeroflex said. With the advent of GPS signal mod...
Read More →Once again, I reach into the mail bag to pull out this gem, from someone both high up and deep down in administrative matters relating to GPS and other technologies. Herewith: Two quotes — with Some Accompanying Thoughts “If we knew what we were doing, it wouldn’t be called res...
Read More →I gave this talk at the Munich Satellite Navigation Summit, in a concluding session titled “Bridging the Gap: A Journalistic View on Progress and Problems of GNSS.” __________ Before telling you what I came here to say today, I should really attempt to answer the question posed by our mo...
Read More →With apologies to James Bond, Ian Fleming, and, well, just about everybody else. Here is a grab from my mail bag. The message was subject-lined: GPS Spy Applications. “I recently suspected my wife of cheating, having been involved with gps as a land surveyor since 1995, I used and applicatio...
Read More →The Russian space agency Roscosmos launched a venerable Proton rocket carrying three GLONASS-M satellites into orbit on December 14. Each 3,000-pound satellite is designed to last seven years. They join a constellation numbering 19 satellites, although only 16 are healthy. Russian politicians and ...
Read More →A range of unrelated events in September show that GPS, the world’s preeminent GNSS, remains a work in progress. The first in a series of deviations from normal GPS signal broadcasts during September was noted by researches at the University of New Brunswick, among others around the globe, who fou...
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By Marcel Baracchi-Frei, Grégoire Waelchli, Cyril Botteron, and Pierre-André Farine The idea of a software receiver is to replace the data processing implemented in hardware with software and to sample the analog input signal as close as possible to the antenna. Thus, the hardware is reduced to th...
Read More →Compass Awry One of the satellites in the Chinese domestic satellite navigation system, Beidou, is no longer in geostationary orbit and appears to have been abandoned. According to information from the U.S. Space Command, the orbit of Beidou 1D was raised by around 130 kilometers on February 18, 200...
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