Global Positioning System and its underlying physical principles related to waves.

Title: Global Positioning System and its underlying physical principles related to waves.
Category: Science & Technology / Physics
Details: Words: 695 | Pages: 3.0 (approximately 235 words/page)

Global Positioning System and its underlying physical principles related to waves.

The Global Positioning System involves the use of transmission of at least 4 radio wave signals from a "constellation" of 24 earth-orbiting satellites at one time. A Global Positioning System (GPS) unit consists of a space segment, a control segment, and a user segment. The space segment is a constellation of two-dozen satellites orbiting the earth twice every 24 hours, at approximately 10,900 nautical miles above the earth's surface. The control segment is a series of monitoring stations located …showed first 75 words of 695 total…

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…showed last 75 words of 695 total…clocks cost somewhere between 000 and 0 000, far too expensive for ordinary consumer use. So the Global Positioning System has a clever and effective solution to this problem. Every satellite contains an expensive atomic clock, but the receiver itself uses an ordinary quartz clock, which it constantly resets. Bibliography http://www.soi.city.ac.uk/~dk708/pg3_3.htm www.digitalangel.net www.howstuffworks.com (Brain M. How a GPS Receiver Works.) http://www.geocan.nrcan.gc.ca/

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