Global Positioning System (GPS) is a space-based radio navigation system that provides accurate, velocity, and time, 24 hours a day, three-dimensional position, everywhere in the world, and in all weather conditions. Because the user does not communicate to the satellite, GPS serves an infinite number of users.


A GPS SATELITE

GPS satellites carry atomic clocks that measure time to a high degree of accuracy. The time information is placed in the codes broadcast by the satellite so that a receiver can continuously determine the time the signal was broadcast. The signal contains data that a receiver uses to compute the locations of the satellites and to make other adjustments needed for accurate positioning. The receiver uses the time difference between the time of signal reception and the broadcast time to compute the range to the satellite. The receiver must account for propagation delays caused by the ionosphere and the troposphere. With three ranges to three satellites and......

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Title: Global Positioning System (Gps)
Approximate Word Count: 449
Approximate Pages: 2 (250 words per double-spaced page)

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