| 释义 |
heterodyne
het·er·o·dyne H0175000 (hĕt′ər-ə-dīn′)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 receiveradj (Electronics) produced by, operating by, or involved in heterodyning two signalshet•er•o•dyne (ˈhɛt ər əˌdaɪn)
adj., v. -dyned, -dyn•ing. adj. 1. pertaining to a method of changing the frequency of an incoming radio signal by adding it to a signal generated within the receiver to produce fluctuations of a frequency equal to the difference between the two signals. v.t. 2. to mix (a frequency) with a different frequency so as to achieve a heterodyne effect. [1905–10; hetero- + -dyne < Greek dýnamis power] heterodyne
Past participle: heterodyned
Gerund: heterodyning
| Imperative |
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| heterodyne | | heterodyne |
| Present |
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| I heterodyne | | you heterodyne | | he/she/it heterodynes | | we heterodyne | | you heterodyne | | they heterodyne |
| Preterite |
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| I heterodyned | | you heterodyned | | he/she/it heterodyned | | we heterodyned | | you heterodyned | | they heterodyned |
| Present Continuous |
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| I am heterodyning | | you are heterodyning | | he/she/it is heterodyning | | we are heterodyning | | you are heterodyning | | they are heterodyning |
| Present Perfect |
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| I have heterodyned | | you have heterodyned | | he/she/it has heterodyned | | we have heterodyned | | you have heterodyned | | they have heterodyned |
| Past Continuous |
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| I was heterodyning | | you were heterodyning | | he/she/it was heterodyning | | we were heterodyning | | you were heterodyning | | they were heterodyning |
| Past Perfect |
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| I had heterodyned | | you had heterodyned | | he/she/it had heterodyned | | we had heterodyned | | you had heterodyned | | they had heterodyned |
| Future |
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| I will heterodyne | | you will heterodyne | | he/she/it will heterodyne | | we will heterodyne | | you will heterodyne | | they will heterodyne |
| Future Perfect |
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| I will have heterodyned | | you will have heterodyned | | he/she/it will have heterodyned | | we will have heterodyned | | you will have heterodyned | | they will have heterodyned |
| Future Continuous |
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| I will be heterodyning | | you will be heterodyning | | he/she/it will be heterodyning | | we will be heterodyning | | you will be heterodyning | | they will be heterodyning |
| Present Perfect Continuous |
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| I have been heterodyning | | you have been heterodyning | | he/she/it has been heterodyning | | we have been heterodyning | | you have been heterodyning | | they have been heterodyning |
| Future Perfect Continuous |
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| I will have been heterodyning | | you will have been heterodyning | | he/she/it will have been heterodyning | | we will have been heterodyning | | you will have been heterodyning | | they will have been heterodyning |
| Past Perfect Continuous |
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| I had been heterodyning | | you had been heterodyning | | he/she/it had been heterodyning | | we had been heterodyning | | you had been heterodyning | | they had been heterodyning |
| Conditional |
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| I would heterodyne | | you would heterodyne | | he/she/it would heterodyne | | we would heterodyne | | you would heterodyne | | they would heterodyne |
| Past Conditional |
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| I would have heterodyned | | you would have heterodyned | | he/she/it would have heterodyned | | we would have heterodyned | | you would have heterodyned | | they would have heterodyned |
Thesaurus| Verb | 1. | 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 twocombine, 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 oscillationselectronics - the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices |
Translationsheterodyne
heterodyne produced by, operating by, or involved in heterodyning two signals Heterodyne a low-power tube-type or semiconductor generator of electrical oscillations used for frequency conversion in superheterodyne radio receivers, wavemeters, and other devices. The heterodyne generates oscillations of the subcarrier frequency, which are mixed with incoming high-frequency oscillations, resulting in the formation of a constant difference frequency (intermediate frequency). The heterodyne must possess a high stability of frequency and insignificant harmonic oscillation amplitudes. A frequency-tunable laser may serve as the heterodyne in optical-frequency receivers. heterodyne[′hed·ə·rə‚dīn] (electronics) To mix two alternating-current signals of different frequencies in a nonlinear device for the purpose of producing two new frequencies, the sum of and difference between the two original frequencies. heterodyneThe mixing of two electrical or acoustic signals to produce a third equal to either the sum of or the difference between their frequencies. For example, if a signal with a frequency of 1000 Hz were to be mixed with another signal of 600 Hz, besides the original two frequencies two new frequencies will be produced: 1600 Hz (1000 + 600), and 400 Hz (1000—600). Radar receivers are of the heterodyne type (as contrasted to the superregenerative type) because the very high radio frequencies used in radar are difficult to amplify. A target signal is heterodyned with a current of lower frequency produced by a klystron oscillator and the resulting intermediate-frequency signal can then be highly amplified for subsequent presentation or analysis.heterodyne
Related to heterodyne: heterodyne receiver, Heterodyne principleWords related to heterodyneverb 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 twoRelated Wordsadj of or relating to the beat produced by heterodyning two oscillationsRelated Words |