Doppler radar

Doppler radar

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.
Compare DOVAP.


Origin:
1955–60
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Doppler radar is always a great word to know.
So is in phase. Does it mean:
when voltage and current reach maximum values at the same time
opposition of inductance and capacitance to alternating current
American Heritage
Science Dictionary
Doppler radar  
Radar that uses the doppler effect to measure velocity.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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