RADAR definition: 1. a system that uses radio waves to find the position of objects that cannot be seen: 2. a system…. Learn more.

The meaning of RADAR is a device or system consisting usually of a synchronized radio transmitter and receiver that emits radio waves and processes their reflections for display and …

Radar is a system that uses radio waves to determine the distance (ranging), direction (azimuth and elevation angles), and radial velocity of objects relative to the site. It is a …

2025年3月21日 · Radar, electromagnetic sensor used for detecting, locating, tracking, and recognizing objects of various kinds at considerable distance. It operates by transmitting …

a method for detecting the position and velocity of a distant object, such as an aircraft. A narrow beam of extremely high-frequency radio pulses is transmitted and reflected by the object back …

radar / rā ′ där / A method of detecting distant objects and determining their position, speed, material composition, or other characteristics by causing radio waves to be reflected from …

Definition of radar noun from the Oxford Advanced Learner's Dictionary. a system that uses radio waves to find the position and movement of objects, for example planes and ships, when they …