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  1. 1. + GPS Background information Christina Hutson Frostburg State University March 7, 2012
  2. 2. + What is the purpose of a GPS  The GPS program provides critical capabilities to military, civil and commercial users around the world. The term GPS stands for Global Positioning System. The GPS project was developed in 1973. GPS was created and realized by the U.S. Department of Defense and was originally run with 24 satellites.
  3. 3. The GPS program providescritical capabilities tomilitary, civil and commercialusers around the world
  4. 4. 1. Space Segment (SS)2. Control Segment (CS)3. User Segment (US)
  5. 5. A GPS receiver calculates its position by precisely timing the signals sent by GPS satellites high above the Earth.