- spectrum efficient modulation
- метод модуляции, обеспечивающий высокую эффективность использования выделенной полосы частот; см. spectrally compact modulation scheme
Англо-русский словарь промышленной и научной лексики. 2014.
Англо-русский словарь промышленной и научной лексики. 2014.
Amplitude modulation — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Delta-sigma modulation — Delta sigma (ΔΣ; or sigma delta, ΣΔ) modulation is a method for encoding high resolution or analog signals into lower resolution digital signals. The conversion is done using error feedback, where the difference between the two signals is… … Wikipedia
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
Eight-to-Fourteen Modulation — (EFM) is a data encoding technique used by CDs and pre Hi MD MiniDiscs. EFM and EFMPlus were both invented by Kees A. Schouhamer Immink. Technological classification EFM [US patent|4,501,000, EFM Patent, applied in Compact Disc, CD R, MiniDisc.]… … Wikipedia
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Dynamic single-frequency networks — (DSFN) is a transmitter macrodiversity technique for OFDM based cellular networks. DSFN is based on the idea of single frequency networks (SFN), which is a group of radio transmitters that send the same signal simultaneously over the same… … Wikipedia
Minimum-shift keying — Passband modulation v · d · e Analog modulation AM · … Wikipedia
High-definition television — Logo High definition television (HDTV) is video that has resolution substantially higher than that of traditional television systems (standard definition television). HDTV has one or two million pixels per frame, roughly five times that of SD… … Wikipedia
telecommunication — [tel΄ə kə myo͞o΄ni kā′shən] n. [also pl., with sing. or pl. v.] communication by electronic or electric means, as through radio, telephone, telegraph, television, or computers * * * tel·e·com·mu·ni·ca·tion (tĕlʹĭ kə myo͞o nĭ kāʹshən) n. 1. The… … Universalium
Electronic amplifier — A practical amplifier circuit An electronic amplifier is a device for increasing the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. In… … Wikipedia
Digital Audio Broadcasting — For other digital audio broadcasting systems, see Digital radio. Countries with regular services … Wikipedia