Global Positioning System
Global Positioning System
The Global Positioning System (GPS) is a satellite-based navigation system consisting of a network of satellites placed into orbit by the U.S. Department of Defense. GPS was originally intended for military applications, but in the 1980s, the government made the system available for civilian use.
Pronunciation
Global Positioning System: /ˈɡloʊbəl pəˈzɪʃənɪŋ ˈsɪstəm/
Etymology
The term "Global Positioning System" is derived from the system's purpose. "Global" refers to the system's worldwide coverage, "Positioning" refers to the system's ability to determine a user's exact location, and "System" refers to the network of satellites and ground stations that make this possible.
Related Terms
- Satellite navigation: A system that uses satellites to provide autonomous geo-spatial positioning.
- Geolocation: The identification or estimation of the real-world geographic location of an object.
- Geodesy: The scientific discipline that deals with the measurement and representation of the Earth.
- Cartography: The study and practice of making maps.
- Geographic information system: A system designed to capture, store, manipulate, analyze, manage, and present spatial or geographic data.
See Also
External links
- Medical encyclopedia article on Global Positioning System
- Wikipedia's article - Global Positioning System
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