| Doppler effect |
change in the apparent frequency of a wave as observer and source move toward or away from each other
출처: wordnet.princeton.edu/perl/webwn
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| Doppler effect |
The Doppler effect, named after Christian Andreas Doppler, is the apparent change in frequency or wavelength of a wave that is perceived by an observer moving relative to the source of the waves. For waves, such as sound waves, that propagate in a wave medium, the velocity of the observer and the source are reckoned relative to the medium in which the waves are transmitted. The total Doppler effect may therefore result from either motion of the source or motion of the observer. ...
출처: en.wikipedia.org/wiki/Doppler_effect
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| Doppler effect |
The change in the observed frequency of an acoustic or electromagnetic wave due to relative motion of the source and the receiver. (Basic Science/sound/dopplereffect.htm)
출처: www.ndt-ed.org/GeneralResources/Glossary/letter/d....
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| Doppler effect |
The apparent change in the pitch of a sound when the source of the sound is moving with respect to the listener. Also called Doppler distortion.
출처: www.dilettantesdictionary.com/index.php
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| Doppler effect |
Any motion-induced change in the observed wavelength (or frequency) of a wave.
출처: astronomy.nju.edu.cn/astron/AT3/GLOSS_D.HTM
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