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GPS Background
information
Christina Hutson
Frostburg State University
March 7, 2012

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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. The GPS program provides critical
capabilities to military, civil and
commercial users around the
world

4. 1. Space Segment (SS)
2. Control Segment (CS)
3. User Segment (US)

5. A GPS receiver calculates its position by precisely timing the
signals sent by GPS satellites high above the Earth.

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References
 http://wordinfo.info/unit/3942?letter=G&spage=3
 http://www.tomtom.com/page/Background-Info-LIVE
 http://en.wikipedia.org/wiki/Global_Positioning_System
 http://ronunruhgps.blogspot.com/2012/02/collection-of-
background-info-sept-11.html