Doppler radar


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Doppler radar

[′däp·lər ′rā‚där]
(engineering)
A radar that makes use of the Doppler shift of an echo due to relative motion of target and radar to differentiate between fixed and moving targets and measure target velocities.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Doppler radar

A radar that detects and interprets the Doppler effect (Doppler frequency shift) in terms of the radial velocity of a target. It differentiates between fixed and moving targets by detecting and measuring the apparent change in frequency of the reflected wave caused by the motion of the target or the observer. It can also serve as an airborne navigational aid by giving ground speed and drift. In this mode, it uses an aircraft compass system as its directional reference. The system is less accurate than the inertial navigation system, or OMEGA. See Doppler shift. See also inertial navigation system and OMEGA.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

Doppler radar

A system for measuring speed that is based on the Doppler effect. It is used in police radar systems as well as for measuring the velocity of hurricanes and tornadoes. See Doppler effect.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
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