Global Positioning Systems Since prehistoric times, people have been trying to discover a reliable way to tell where they are, to help guide them to where we are going, and to get them back home again. The latest application for determining our position is the Global Positioning System.The Global Positioning System (GPS) is a worldwide radio-navigation system formed from a constellation of 24 satellites and their ground stations. Using satellites and radio signals to pin-point …
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showed last 75 words of 954 total
…enhance safety and to decrease fuel consumption will make GPS an important component of travel in the international airspace system. The GPS system is also extremely accurate, the differential GPS provides a horizontal position accurate to about 3 m. Airplanes will use GPS for landing at fogbound airports. Automobiles will use GPS as part of intelligent transportation systems. Emerging technologies will enable GPS to determine not only the position of a vehicle but also its altitude.