GPS

GPS is an acronym for Global Positioning System. The system was developed in the 1980s by the Department of Defense for the United States of America. Part of a Global Navigation Satellite System (GNSS), GPS was intended to provide the United States with a system to provide constant information to a user's precise location, the time, and velocity anywhere on Earth.

A network of between 24 and 32 satellites rotate around the globe to provide constant support. In order for any information to be accurate, the GPS system needs at least four satellites to fixate on any one user (located by a receiver unit). Three satellites work to triangulate a user's location, while another satellite works to calculate the correct time the location coordinates were measured. Other satellites and land-based units also work to provide more calculations to increase accuracy and reduce error.

Garmin and Trimble are makers of the more popular and advanced GPS receivers available.

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Original Technorati articles tagged “GPS”

• in Technology
  Tele Atlas Adds Community Input to New Map System
  Tele Atlas releases MultiNet 2009, which adds user data to the usual sources
  by jaideepkhanduja / on Dec 16, 2009
• in Outdoor
  Discover the Fun of Geocaching
  A little bit hiking, a little bit puzzle, a little bit tech — it's geocaching.
  by DistortedAngel / on Dec 4, 2009
• in Technology
  UK Mapping Agency Licences Data for Commercial Location Tracking
  GPS data merges with UK's most accurate maps for pin-point accuracy
  by orangeduvet / on Nov 3, 2009

Latest blogosphere posts tagged “GPS”

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• Bushnell ONIX200CR GPS w/ Satellite Photo and Topographical Overlays

  
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• Garmin nüvi 500 3.5-Inch Portable GPS Navigator

  
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• Magellan RoadMate 1470 GPS

  
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• Magellan Launches Premium Car Kit for iPhone and iPod Touch

  
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