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heterodyne

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
het·er·o·dyne  (htr--dn)
adj.
Having alternating currents of two different frequencies that are combined to produce two new frequencies, the sum and difference of the original frequencies, either of which may be used in radio or television receivers by proper tuning or filtering.
tr.v. het·er·o·dyned, het·er·o·dyn·ing, het·er·o·dynes
To combine (a radio-frequency wave) with a locally generated wave of different frequency in order to produce a new frequency equal to the sum or difference of the two.

[hetero- + -dyne, power, frequency (from Greek dunamis, power; see dynamic).]

heterodyne [ˈhɛtərəʊˌdaɪn]
vb
(Electronics) Electronics to combine by intermodulation (two alternating signals, esp radio signals) to produce two signals having frequencies corresponding to the sum and the difference of the original frequencies See also superheterodyne receiver
adj
(Electronics) produced by, operating by, or involved in heterodyning two signals
ThesaurusLegend:  Synonyms Related Words Antonyms
Verb1.heterodyne - combine (a radio frequency wave) with a locally generated wave of a different frequency so as to produce a new frequency equal to the sum or the difference between the two
combine, compound - combine so as to form a whole; mix; "compound the ingredients"
Adj.1.heterodyne - of or relating to the beat produced by heterodyning two oscillations
electronics - the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices


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A component used for coherent signal demodulation for either heterodyne or intradyne detections.
Scientists used Herschel's Heterodyne Instrument for the Far-Infrared (HIFI) on June 22 to look for warm molecular gas heated by newborn massive stars in the DR21 star-forming region in Cygnus.
It carries three scientific instruments, a very high resolution heterodyne spectrometer, an imaging photometer / medium resolution grating spectrometer and an imaging photometer / imaging Fourier transform spectrometer, designed to take maximum advantage of the characteristics of the Herschel mission.
 
 
 
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