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single-frequency conversion

См. также в других словарях:

  • Single-frequency signaling — (SF) is line signaling (in telephony) in which dial pulses or supervisory signals are conveyed by a single voice frequency tone in each direction. SF and similar systems were used in 20th century carrier systems.An SF signaling unit converts DC… …   Wikipedia

  • Direct-conversion receiver — A direct conversion receiver (DCR), also known as homodyne, synchrodyne, or zero IF receiver, is a radio receiver design that demodulates the incoming radio signal using synchronous detection driven by a local oscillator whose frequency is… …   Wikipedia

  • Single-carrier FDMA — (SC FDMA) is frequency division multiple access scheme. It can be viewed as a linearly precoded OFDMA scheme, henceforth LP OFDMA. Or, it can be viewed as a single carrier multiple access scheme. One prominent advantage over conventional OFDMA is …   Wikipedia

  • Frequency mixer — This article is about non linear mixing operating in the frequency domain. For other types of mixers, see electronic mixer. Frequency Mixer Symbol. In electronics a mixer or frequency mixer is a nonlinear electrical circuit that creates new… …   Wikipedia

  • Conversion to Judaism — This article is part of the Jewish outreach series Denominations Orthodox outreach Chabad outreach Noahide Campaign Modern Orthodox Judaism outreach Religious Zionism outreach General Conservative outreach Reform outreach …   Wikipedia

  • Utility frequency — The waveform of 230 volt, 50 Hz compared with 110 V, 60 Hz. The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency at which alternating current (ac, also AC) is transmitted from a… …   Wikipedia

  • Electric power conversion — In electrical engineering, power conversion has a more specific meaning, namely converting electric power from one form to another. This could be as simple as a transformer to change the voltage of AC power, but also includes far more complex… …   Wikipedia

  • Sample rate conversion — is the process of converting a (usually digital) signal from one sampling rate to another, while changing the information carried by the signal as little as possible. When applied to an image, this process is sometimes called image scaling.Sample …   Wikipedia

  • Television standards conversion — is the process of changing one type of TV system to another. The most common is from NTSC to PAL or the other way around. This is done so TV programs in one nation may be viewed in a nation with a different standard. The TV video is fed through a …   Wikipedia

  • Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… …   Wikipedia

  • Variable-frequency drive — A variable frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor.cite book | first=Sylvester J. |… …   Wikipedia

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