The Global Positioning System. What is GPS? The global positioning system is a satellite-based navigation system, developed and operated by the U.S. Department of Defence, consisting of a network of 24 orbiting satellites that are eleven thousand nautical miles in space, at an inclination of 55 degrees and in six different orbital paths. The satellites are constantly moving, making two complete orbits around the Earth in just less than 24 hours. The GPS satellites are referred to as NAVSTAR satellites. GPS uses these 'man-made' stars as reference points to calculate positions accurate to a matter of metres. Advanced forms of GPS can make measurements to better than a centimetre. GPS now permits land, sea and airborne users to determine their three dimensional position anywhere in the world very precisely and accurately. The user segment consists of receivers, processors and antennas. The vast majority of applications of precision possible with GPS is primarily of scientific and......

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Title: Global Positioning System (Gps)
Approximate Word Count: 1035
Approximate Pages: 5 (250 words per double-spaced page)

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