英语词汇“up-conversion”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

up-conˈversion n.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > processes > [noun] > conversion to higher frequency

up-conversion1958

1958 Bell Syst. Techn. Jrnl. 37 989 In up-conversion (modulation) a power gain results, with the power added to the input signal being supplied by the beat oscillator. In down~conversion a power loss results.

1975 D. G. Fink Electronics Engineers' Handbk. xiv. 72 There is a distinct advantage to up-conversion; image rejection is easily achievable by a simple low-pass filter.

1983 E. Trundle Beginner's Guide Videocassette Recorders v. 91 The up-conversion process during replay involves a heterodyne system.

单词	up-conversion
释义	> as lemmas up-conˈversion up-conˈversion n. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > processes > [noun] > conversion to higher frequency up-conversion1958 1958 Bell Syst. Techn. Jrnl. 37 989 In up-conversion (modulation) a power gain results, with the power added to the input signal being supplied by the beat oscillator. In down~conversion a power loss results. 1975 D. G. Fink Electronics Engineers' Handbk. xiv. 72 There is a distinct advantage to up-conversion; image rejection is easily achievable by a simple low-pass filter. 1983 E. Trundle Beginner's Guide Videocassette Recorders v. 91 The up-conversion process during replay involves a heterodyne system. extracted from up-convertern. < as lemmas
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> as lemmas