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• global positioning system
  global positioning system

  noun

  a system of earth-orbiting satellites, transmitting signals continuously towards the earth, that enables the position of a receiving device on or near the earth's surface to be accurately estimated from the difference in arrival times of the signals
• Global Positioning System
  Global Positioning System

  A system of satellites combined with receivers on the Earth that determines the latitude and longitude of any particular receiver through triangulation. The distance of the receiver to three of the satellites is ascertained by measuring the time-delay of a predetermined radio signal (called a pseudo-random code). Errors in timing can be corrected by checking the signals against the signal from a fourth satellite. Current systems can pinpoint the location of the receiver with an accuracy of around 5 m (16 ft). The system is used for navigation, surveying, and many other applications.

global positioning system

British  

noun

1.  GPS.  a system of earth-orbiting satellites, transmitting signals continuously towards the earth, that enables the position of a receiving device on or near the earth's surface to be accurately estimated from the difference in arrival times of the signals

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Global Positioning System Scientific  

/ glō′bəl /

1. A system of satellites combined with receivers on the Earth that determines the latitude and longitude of any particular receiver through triangulation. The distance of the receiver to three of the satellites is ascertained by measuring the time-delay of a predetermined radio signal (called a pseudo-random code). Errors in timing can be corrected by checking the signals against the signal from a fourth satellite. Current systems can pinpoint the location of the receiver with an accuracy of around 5 m (16 ft). The system is used for navigation, surveying, and many other applications.

2. Compare loran

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global positioning system Cultural  

1. A U.S. military satellite system now available for public use that allows those with a GPS receiver to locate their position on the surface of the Earth to within a few feet. A constellation of twenty-four satellites orbits the Earth, each of which transmits a radio signal giving both location of the satellite and the time of the transmission. Triangulation of three separate signals is then used by the receiver to determine its position on the Earth's surface.

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Example Sentences

In practice, without any global positioning system satellites around the moon to pinpoint precise locations, it might take some trial and error figure out how best to keep the spacecraft in the desired orbit.

From New York Times • Jun. 26, 2022

The global positioning system, for example, provides navigation services to the military as well as civilians.

From The Guardian • Dec. 21, 2019

But you’d probably still be surprised at all the things that GPS—the global positioning system that underlies all of modern navigation—can do.

From Scientific American • Oct. 30, 2019

He said one of the ways Holsclaw is contributing to the city is by participating in a program to place all his institutional knowledge of the water system onto a global positioning system.

From Seattle Times • Sep. 24, 2017

This was mainly because the global positioning system, which can be used to guide munitions to their target, was being jammed, while the rival Russian version, called GLONASS, was not then ready for use.

From Reuters • Oct. 26, 2015