单词 | subharmonic |
释义 | subharmonicsub·har·mon·icS0840400 (sŭb′här-mŏn′ĭk)subharmonic(ˌsʌbhɑːˈmɒnɪk)Subharmonicsubharmonic[¦səb·här′män·ik]Subharmonicin radio engineering, a sinusoidal oscillation with a frequency usually equal to an integral submultiple or proper fraction of the fundamental frequency. Subharmonics are produced by means of frequency dividers. Some frequency dividers can reduce the frequency by a factor of several thousand in a single stage. REFERENCESRizkin, I. Kh. Umnozhiteli i deliteli chastoty. Moscow, 1966.Hughes, W. Nelineinye elektricheskie tsepi. Moscow, 1967. (Translated from English.) Lapitskii, E. G., A. M. Semenov, and L. N. Sosnovkin. Raschet diapazonnykh radioperedatchikov. Leningrad, 1974. Subharmonic(Russian, unterton), a sinusoidal component of a periodic oscillation of complex shape. The frequency of a subharmonic is an integral submultiple—usually by a factor of two—of the fundamental frequency. As a rule, subharmonics occur in nonlinear systems. |
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