spread-spectrum modem

spread-spectrum modem
модем для передачи шумоподобных сигналов; модем с расширенным спектром сигналов

Англо-русский словарь технических терминов. 2005.

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  • Spread spectrum — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

  • Chirp spread spectrum — A linear frequency modulated upchirp in the time domain In digital communications, Chirp spread spectrum (CSS) is a spread spectrum technique that uses wideband linear frequency modulated chirp pulses to encode information.[1] A chirp is a… …   Wikipedia

  • Direct-sequence spread spectrum — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

  • Modem — For other uses, see Modem (disambiguation). A modem (modulator demodulator) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. The… …   Wikipedia

  • ZX Spectrum software — The ZX Spectrum software library currently consists of more than 14,000 titles.cite web | url=http://www.worldofspectrum.org/archive.html | work=World of Spectrum | last = Heide | first = Martijn van der | accessdate=2006 08 11 | title=Archive!]… …   Wikipedia

  • Spectral efficiency — Spectral efficiency, spectrum efficiency or bandwidth efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific communication system. It is a measure of how efficiently a limited frequency spectrum is… …   Wikipedia

  • Symbol rate — In digital communications, symbol rate (also known as baud or modulation rate) is the number of symbol changes (waveform changes or signalling events) made to the transmission medium per second using a digitally modulated signal or a line code.… …   Wikipedia

  • Modulation — For musical change of key, see Modulation (music). For other uses, see Modulation (disambiguation). Passband modulation v · d · e …   Wikipedia

  • Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

  • Bluetooth — This article is about the electronic protocol. For the medieval King of Denmark, see Harald I of Denmark. Bluetooth logo Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances (using short wavelength …   Wikipedia

  • Modulationsspannung — Die Modulation (von lat. modulatio = Takt, Rhythmus) beschreibt in der Nachrichtentechnik einen Vorgang, bei dem ein zu übertragendes Nutzsignal (Musik oder Sprache) ein sogenanntes Trägersignal verändert (moduliert) und damit die Übertragung des …   Deutsch Wikipedia


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