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GPS
References & Edit History Quick Facts & Related Topics
Images & Videos
GPS satellite
Diagram over a world map showing four satellites with colored circles and dotted lines connecting them to a central ground receiver, illustrating satellite navigation calculation.
Know how GPS satellites guide airplanes, cars, and even cell phones
Illustration of Earth surrounded by intersecting red orbital paths, each with GPS satellites positioned along them, and an inset showing a detailed view of a Navstar Block II navigation satellite.
How are gravitational waves applied in science and in everyday life?
Learn how a farm in Upper Bavaria uses tractors equipped with the GPS navigation system for farming
At a Glance
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Global Positioning System summary
Quizzes
Sextant. Celestial navigation at sea. Sailor using sextant. Travel and navigation.
Travel and Navigation
Related Questions

GPS: References & Edit History

Additional Reading

Tom Logsdon, Understanding the Navstar: GPS, GIS, and IVHS (1995), explains how GPS works, how its performance is being enhanced with various navigation aids, and how it is being used in a multitude of applications. Pratup Misra and Per Enge, Global Positioning System: Signals, Measurements and Performance (2001), is a graduate-level textbook that focuses on the engineering of the overall GPS, its satellites, receivers, and ground equipment. Elliot Kaplan (ed), Understanding GPS: Principles and Application (1996), provides wide-ranging coverage of GPS by industry experts.

Tom S. Logsdon

Article History

Type Description Contributor Date
Media added. Apr 20, 2026
Add new Web site: Lifewire - What Is GPS and How Does It Work? May 09, 2022
Add new Web site: Engineering and Technology History Wiki - Global Positioning System. May 09, 2022
Removed media. Jul 30, 2021
Article revised and updated. Apr 21, 2021
Add new Web site: NASA Space Place - How Does GPS Work? Mar 08, 2019
Add new Web site: National Geographic - GPS. Mar 05, 2019
Add new Web site: Inventors and Inventions - GPS. Mar 05, 2019
Add new Web site: Social Studies for Kids - Cool Geography: The Global Positioning System. Jan 17, 2017
Add new Web site: Smithsonian National Air and Space Museum - Global Positioning System: A New Constellation. Jul 27, 2016
Added video about how relativity affects GPS satellites. Dec 03, 2015
Added video. Feb 06, 2015
Add new Web site: British Broadcasting Corporation - Global Positioning System. Feb 23, 2014
Add new Web site: Hyperphysics - Global Positioning System. Feb 23, 2014
Add new Web site: Buzzle.com - GPS. Jan 14, 2014
Article revised and updated. May 10, 2013
Updated information on China's Beidou Navigation System. Jul 09, 2009
Added new Web site: How Stuff Works - Electronics - How GPS Receivers Work. Apr 07, 2009
Added new Web site: Office of Naval Research - The Navy and Satellites: Global Positioning System (GPS). May 19, 2008
Added information on EU and Chinese GPS. Dec 18, 2007
Added new Web site: Smithsonian National Air and Space Museum - Global Positioning System: A New Constellation. Jun 15, 2006
New article added. Feb 18, 2005
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