Frequency shift

Frequency shift

In the physical sciences and in telecommunication, the term frequency shift has the following meanings:

* Any change in frequency
* A Doppler shift
* Any change in the frequency of a radio transmitter or oscillator. (Note: In the radio regime, frequency shift is also called rf shift.)
* Frequency-shift telegraphy
* In facsimile, a frequency modulation system where one frequency represents picture black and another frequency represents picture white. Frequencies between these two limits may represent shades of gray
* An intentional frequency change used for modulation purposes


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  • frequency shift — dažnio poslinkis statusas T sritis fizika atitikmenys: angl. frequency shift vok. Frequenzhub, m; Frequenzverschiebung, f rus. сдвиг частоты, m; частотный сдвиг, m pranc. décalage de fréquence, m; déplacement de fréquence, m …   Fizikos terminų žodynas

  • Frequency-shift keying — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

  • Frequency Shift Keying — Bildung eines binären FSK Signals. Oben: Quelldaten als eine Folge von logisch 1 und logisch 0. Mitte: Unmodulierte Trägerfrequenz Unten: Moduliertes FSK Signal. Die Frequenzumtastung (englisch Frequency Shift Keying, FSK) ist eine… …   Deutsch Wikipedia

  • Frequency-shift keying — Modulation par déplacement de fréquence Exemple de modulation FSK cohérente La modulation par déplacement de fréquence (MDF), plus connue sous sa dénomination anglophone de frequency shift keying (FSK) est un mode de modulation de fréquence… …   Wikipédia en Français

  • frequency shift keying — dažninis manipuliavimas statusas T sritis automatika atitikmenys: angl. frequency shift keying vok. Frequenztastung, f rus. частотная манипуляция, f pranc. modulation par déplacement de fréquence, f …   Automatikos terminų žodynas

  • frequency-shift telegraphy — dažnio manipuliacijos telegrafija statusas T sritis radioelektronika atitikmenys: angl. frequency shift telegraphy vok. Frequenzumtasttelegrapfie, f rus. телеграфия с частотной манипуляцией, f pranc. télégraphie à déplacement de fréquence, f …   Radioelektronikos terminų žodynas

  • frequency shift — noun : a method of communication in radiotelegraphy based on slight shifts in the carrier frequency in accordance with the code signals …   Useful english dictionary

  • frequency-shift keying — noun A form of frequency modulation in which digital information is transmitted through discrete changes of the frequency of a carrier wave. Syn: FSK …   Wiktionary

  • frequency shift keying —    (FSK)    Frequency modulation of a carrier by a modulating signal that varies between a fixed number of discrete values (a digital signal) …   IT glossary of terms, acronyms and abbreviations

  • Multiple frequency-shift keying — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

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