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| | Global Positioning System Article @ HillCountryArtists.com (Hill Country Artists) (Site not responding. Last check: 2007-11-04) |
 | | GPS receivers calculate their current position (latitude, longitude, elevation), and the precise time, using the process of trilateration. |
 | | The receiver calculates the orbit of each satellite based on information encoded in their radio signals, and measures the distance to each satellite, called a pseudorange, based on the time delay from when the satellite signals were sent until they were received. |
 | | On February 10, 1993, the National Aeronautic Association selected the Global Positioning System Team as winners of the 1992 Robert J. This team consists of researchers from the Naval Research Laboratory, the U.S. Air Force, the Aerospace Corporation, Rockwell International Corporation, and IBM Federal Systems Company. |
| www.hillcountryartists.com /encyclopedia/Global_Positioning_System (3020 words) |
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