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radar

Object detection system based on radio waves

EntityQ47528

Also known as RADAR · R.A.D.A.R. · Radio Detection and Ranging

Subclass of: measuring instrument
, electronic instrument

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Radar is a system that uses radio waves to determine the distance (ranging), direction, and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations and terrain. The term RADAR was coined in 1940 by the United States Navy as an acronym for "radio detection and ranging". The term radar has since entered English and other languages as an anacronym, a common noun, losing all capitalization.

Overview

All data

88 statements · 20% with external sources · numbers in brackets are citations

On other databases

62 identifiers linking radar across the web's reference databases

Data quality

statements

20%

externally sourced

Source last edited October 17, 2026. AIDB refreshes this page daily.

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AIDB. (2026). radar (Q47528). Retrieved from https://aidb.si/e/radar-Q47528