A much more accurate global positioning system, or GPS, is being tested that could change how planes and autos are tracked.
"In the new system, 25 ground stations constantly check the accuracy of the GPS signal. Software corrects glitches caused by things like atmospheric disturbances, and the stations beam corrected information to pilots via a pair of satellites. After seven years of trying, Raytheon of Lexington, MA, is expected to deliver the system as early as March 2003, the FAA says."
Thanks to Chris Steins
FULL STORY: GPS Cleared for Takeoff
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