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detection

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de⋅tec⋅tion

  [di-tek-shuhn]
Use detection in a Sentence
–noun
1. the act of detecting.
2. the fact of being detected.
3. discovery, as of error or crime: chance detection of smuggling.
4. Telecommunications.
a. rectification of alternating signal currents in a radio receiver.
b. Also called demodulation. the conversion of an alternating, modulated carrier wave or current into a direct, pulsating current equivalent to the transmitted information-bearing signal.
Origin:
1425–75; late ME < LL dētēctiōn- (s. of dētēctiō), equiv. to L dētēct(us) (see detect ) + -iōn- -ion
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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de·mod·u·la·tion   (dē-mŏj'ə-lā'shən)   
n.  The conversion of a modulated carrier wave into a current equivalent to the original signal. Also called detection.
de·tec·tion   (dĭ-těk'shən)   
n.  

  1. The act or process of detecting; discovery: detection of a crime; detection of radiation from a distant galaxy.

  2. See demodulation.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia

detection

in electronics, the process of rectifying a radio wave and recovering any information superimposed on it; it is essentially the reverse of modulation (q.v.).

Learn more about detection with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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