by Greg Turetzky I started my relationship with GNSS and Moore’s Law in 1985, writing software for GPS tracking loops on the Advanced Range Instrumentation Aircraft program at the Applied Physics La...
Read More →At press time, GPS spacecraft IIF-1 was set to be launched May 27 from Cape Canaveral Air Force Station in Florida. This first of a new generation of satellites will travel quickly — instead...
Read More →By Brady O’Hanlon, Mark L. Psiaki, Paul M. Kintner Jr., and Steven P. Powell Anomalous behavior of the L1 C/A-code carrier phase has been detected on PRN07/SVN-48. The anomalies are sudden step-...
Read More →Galileo ICD, Free at Last The European Commission (EC) has published an updated Galileo Open Service Signal-In-Space Interface Control Document (OS SIS ICD) giving technical specifications and perform...
Read More →by James J. Spilker, Jr. The original GPS signals, and indeed most GPS signals including L5, utilize conventional pseudonoise (PN) signal code division multiple access (CDMA), some with both in-phase ...
Read More →Perhaps we should call this The Interquel rather than The Sequel, as the latter will take place September 23 in Portland, Oregon, during the ION GNSS 2010 Conference. In January, 12 brave individuals ...
Read More →“This is an event where one gets one’s goals for the next year.” Paul Verhoef, program director for satellite navigation programs of the European Commission, may have exaggerated for effect, and...
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 — w...
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