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

---

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

---

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.

---

Example Sentences

In some of the meetings, Li Shufu floated his idea of using hundreds of proprietary mini, low-orbit satellites as a more accurate global positioning system for self-driving cars, Daniel Li said.

From Reuters • Sep. 2, 2021

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

The programs are like a global positioning system app on a smartphone — helpful but not perfect.

From New York Times • Feb. 23, 2018

That lead to a deeper understanding of how the brain, including ours, creates a map of the environment -- essentially an inner global positioning system, or GPS.

From Seattle Times • Oct. 6, 2014