Doppler radar

American

noun

Electronics.

a radar tracking system that determines the velocity of a moving object by measuring the Doppler shift of the frequency of a radar signal reflected by the object.

Doppler radar Scientific

Radar that uses the Doppler effect to measure velocity.

Etymology

Origin of Doppler radar

First recorded in 1955–60

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

This is what people did in the old days before satellite imagery and Doppler radar.

From Literature

“At 8:53 a.m. Doppler radar indicated thunderstorms producing heavy rain across the warned area,” an alert warned.

From Los Angeles Times

Their Earthcare satellite used a Doppler radar to capture the view.

From BBC

It also carries the first space-based Doppler radar to track the motions of clouds and probe how they fuel storms.

From Science Magazine

Operating in an era before Doppler radar and high-speed super computers, Allied meteorologists had to rely on hand-drawn maps, historical data, and spotty weather observations to put together their forecasts.

From Seattle Times

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023