Assisted GPS, generally abbreviated as A-GPS or aGPS, is a system that can under certain conditions improve the startup performance, or time-to-first-fix (TTFF), of a GPS satellite-based positioning system. It is used extensively with GPS-capable cellular phones, as its development was accelerated by the U.S. FCC's 911 requirement to make the location of a cell phone available to emergency call dispatchers.
Read more about Assisted GPS: Description, Basic Concepts, Modes of Operation, Standards
Famous quotes containing the word assisted:
“We are thus assisted by natural objects in the expression of particular meanings. But how great a language to convey such pepper-corn informations!”
—Ralph Waldo Emerson (1803–1882)