- center frequency modulation
- Abbreviation: CFM
Универсальный русско-английский словарь. Академик.ру. 2011.
center frequency modulation
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Frequency modulation — See also: Amplitude modulation In telecommunications, frequency modulation (FM) conveys information over a carrier wave by varying its frequency (contrast this with amplitude modulation, in which the amplitude of the carrier is varied while its… … Wikipedia
Frequency deviation — (Δf) is used in FM radio to describe the maximum instantaneous difference between an FM modulated frequency and the nominal carrier frequency. The term is sometimes mistakenly used as synonymous with frequency drift, which is an unintended offset … Wikipedia
Modulation — Mod u*la tion, n. [L. modulatio: cf. F. modulation.] 1. The act of modulating, or the state of being modulated; as, the modulation of the voice. [1913 Webster] 2. Sound modulated; melody. [R.] Thomson. [1913 Webster] 3. (Mus.) A change of key,… … The Collaborative International Dictionary of English
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Carrier frequency — is a term used to designate: * The nominal frequency of a carrier wave * The center frequency of a frequency modulation signal * The frequency of the unmodulated electrical wave at the output of an amplitude modulated (AM), frequency modulated… … Wikipedia
Pulse-width modulation — (PWM) of a signal or power source involves the modulation of its duty cycle, to either convey information over a communications channel or control the amount of power sent to a load. PrinciplePulse width modulation uses a square wave whose pulse… … Wikipedia
Area Control Center — [ thumb|300px|This temporary flight restriction map from the Federal Aviation Administration shows the boundaries of the regions controlled by the Area Control Centers within and adjoining the continental United States, as well as the FAA… … Wikipedia
Orthogonal frequency-division multiple access — Multiplex techniques Circuit mode (constant bandwidth) TDM · FDM · SDM Polarization multiplexing Spatial multiplexing (MIMO) … Wikipedia
Radio Frequency Identification — Die Neutralität dieses Artikels oder Abschnitts ist umstritten. Eine Begründung steht auf der Diskussionsseite. siehe: Abwahl Lesenswert Februar 2007 … Deutsch Wikipedia
