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Global Positioning Systems

The Global Positioning System (GPS) is a space -based satellite navigation system used to provide location and time information in all weather conditions, anywhere on or near Earth. Global Positioning System can only be used outdoors where the view of the sky is not obstructed. Global Positioning System is useful for military, civil and commercial purposes worldwide. Global Positioning System is also used for commerce, scientific uses, tracking, and surveillance. Global Positioning System with its accurate time assists in daily activities such as banking, mobile phone operations, and even the control of power grids. Global Positioning System is also helpful in astronomy, cartography, cellular telephony and for disaster relief and emergency services and fleet tracking. Global Positioning System does not perform well in forested areas or near tall buildings.