frequency carrier

См. также в других словарях:

• Frequency-division multiplexing — (FDM) is a form of signal multiplexing where multiple baseband signals are modulated on different frequency carrier waves and added together to create a composite signal. Non telephoneFDM can also be used to combine multiple signals before final… …   Wikipedia

• Frequency modulation synthesis — In audio and music frequency modulation synthesis (or FM synthesis) is a form of audio synthesis where the timbre of a simple waveform is changed by frequency modulating it with a modulating frequency that is also in the audio range, resulting in …   Wikipedia

• frequency — Synonyms and related words: AF, CPS, EHF, HF, Hz, MF, RF, SHF, UHF, VHF, VLF, amplitude, antinode, audio frequency, carrier frequency, crest, cycles, de Broglie wave, diffraction, electromagnetic radiation, electromagnetic wave, extremely high… …   Moby Thesaurus

• Frequency-hopping spread spectrum — (FHSS) is a method of transmitting radio signals by rapidly switching a carrier among many frequency channels, using a pseudorandom sequence known to both transmitter and receiver. A spread spectrum transmission offers three main advantages over… …   Wikipedia

• 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

• Carrier interferometry — (CI) is a type of spread spectrum multiple access typically employed with Orthogonal frequency division multiplexing (OFDM). CI spreading codes are commonly used to spread data symbols across multiple OFDM subcarriers for diversity benefits and… …   Wikipedia

• Carrier current — is a method of low power AM broadcasting that does not require a broadcast license in the United States, but is allowed on the campus of any school, so long as the normal FCC Part 15 Rules are adhered to when measured at the edge of the campus.… …   Wikipedia

• Carrier-Suppressed Return-to-Zero (CSRZ) — is an optical signal format. In CSRZ the field intensity drops to zero between consecutive bits (RZ), and the field phase alternates by π between neighbouring bits, so that if the phase of the signal is e.g. 0 in even bits (bit number 2 n ), the… …   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

• Frequency-division multiple access — or FDMA is an channel access method that is used by radio systems to share a certain radio spectrum between multiple users. The users are individually allocated one or several frequency bands, allowing them to access the radio system without… …   Wikipedia

• Carrier Frequency —   [dt. Trägerfrequenz], Frequenz des Trägersignals …   Universal-Lexikon