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keying chirp

См. также в других словарях:

  • 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

  • Chirp Spread Spectrum — Der Begriff Chirp Spread Spectrum (CSS) bzw. Zirpenfrequenzspreizung bezeichnet eine Modulationstechnik, welche zur Frequenzspreizung (engl. Spread Spectrum) Chirp Impulse (= Zirpen) verwendet. Dieses Modulationsverfahren wird zur drahtlosen… …   Deutsch Wikipedia

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

  • IEEE 802.15.4-2006 — is a standard which specifies the physical layer and medium access control for low rate wireless personal area networks (LR WPAN s). It is maintained by the IEEE 802.15 working group.It is the basis for the ZigBee, WirelessHART, and MiWi… …   Wikipedia

  • Two-way radio — receiver which only receives content. Two way radios are available in mobile, stationary base and hand held portable configurations. Hand held radios are often called walkie talkies or handie talkies. A push to talk or Press To Transmit button is …   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

  • Optical hybrid — A 90° optical hybrid is a six port device that is used for coherent signal demodulation for either homodyne or heterodyne detection. It would mix the incoming signal with the four quadratural states associated with the reference signal in the… …   Wikipedia

  • Радиожаргон — Радиожаргон  многочисленные кодовые выражения, используемые в служебной и любительской радиосвязи для экономии времени. В отличие от Q кода и Z кода, выражения радиожаргона создавались стихийно. Они изменяются с течением времени[1] и не… …   Википедия

  • RST code — For other uses of the three letter acronym, see RST. The RST code is used by amateur radio operators, shortwave listeners, and other radio hobbyists to exchange information about the quality of a radio signal being received. The code is a three… …   Wikipedia

  • Ambiguity function — In pulsed radar and sonar signal processing, an ambiguity function isa two dimensional function of time delay and Doppler frequencychi( au,f) showing the distortion of an uncompensated matched filter (sometimes called pulse compression) due to… …   Wikipedia

  • Selective calling — SECAL redirects here. For the French wine grape also known as Secal, see Jurançon (grape). In a conventional, analog two way radio system, a standard radio has noise squelch or carrier squelch which allows a radio to receive all transmissions.… …   Wikipedia

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