- bandwidth, frequency band
- полоса частот
Терминологический словарь МИД России. EdwART. 2011.
bandwidth, frequency band
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Bandwidth extension — of signal is defined as the deliberate process of expanding the frequency range (bandwidth) of a signal in which it contains an appreciable and useful content, and/or the frequency range in which its effects are such. Its significant advancement… … Wikipedia
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
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
Frequency — For other uses, see Frequency (disambiguation). Three cyclically flashing lights, from lowest frequency (top) to highest frequency (bottom). f is the frequency in hertz (Hz), meaning the number of cycles per second. T is the period in seconds (s) … Wikipedia
Bandwidth — A&V The complete range of frequencies over which a circuit or electronic system can function with minimal signal loss, typically less than 3 dB. The information carrying capability of a particular television channel. In PAL systems the bandwidth… … Audio and video glossary
bandwidth — noun a) The width, usually measured in hertz, of a frequency band. But now is a good time to be bargaining for bandwidth, as the switch from analogue to digital television is freeing up space. b) Of a signal, the width of the smallest frequency… … Wiktionary
Frequency range — A frequency range or frequency band is a range of wave frequencies. It most often refers to either a range of frequencies in sound or a range of frequencies in electromagnetic radiation, which includes light and radio waves. Many radio devices… … Wikipedia
bandwidth — i. The range of frequencies, above and/or below the frequency of a carrier wave, required for modulation of a signal. It is the width of the transmitted frequency spectrum (the difference between the highest and the lowest frequency) of a… … Aviation dictionary
bandwidth — The difference between the limiting frequencies of a continuous frequency band expressed in hertz (cycles per second). The term bandwidth is also loosely used to refer to the rate at which data can be transmitted over a given communications… … Military dictionary
Bandwidth (signal processing) — Bandwidth is the difference between the upper and lower cutoff frequencies of, for example, a filter, a communication channel, or a signal spectrum, and is typically measured in hertz. In case of a baseband channel or signal, the bandwidth is… … Wikipedia
bandwidth — /band width , with /, n. 1. Telecommunications. the smallest range of frequencies constituting a band, within which a particular signal can be transmitted without distortion. 2. the transmission capacity of an electronic communications device.… … Universalium
