PHASE OF SIGNALS

PHASE OF SIGNALS
طور الاشارات

English-Arabic military dictionary. 2015.

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  • Phase synchronization — is the process by which two or more cyclic signals tend to oscillate with a repeating sequence of relative phase angles.Phase synchronisation is usually applied to two waveforms of the same frequency with identical phase angles with each cycle.… …   Wikipedia

  • Phase (waves) — Phase in waves is the fraction of a wave cycle which has elapsed relative to an arbitrary point.[1] Contents 1 Formula 2 Phase shift 3 Phase difference …   Wikipedia

  • Phase modulation — (PM) is a form of modulation that represents information as variations in the instantaneous phase of a carrier wave.Unlike its more popular counterpart, frequency modulation (FM), PM is not very widely used. This is because it tends to require… …   Wikipedia

  • Phase detector — A phase detector is a frequency mixer or analog multiplier circuit that generates a voltage signal which represents the difference in phase between two signal inputs. It is an essential element of the phase locked loop (PLL).Detecting phase… …   Wikipedia

  • Phase-locked loop — PLL redirects here. For other uses, see PLL (disambiguation). A phase locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input reference signal. It is an electronic… …   Wikipedia

  • Phase-shift keying — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

  • Phase Alternating Line — Das Phase Alternation Line Verfahren [feɪz ˈɒltəneɪʃən laɪn], kurz PAL, ist ein Verfahren zur Farbübertragung beim analogen Fernsehen. Es wurde mit dem Ziel entwickelt, störende Farbton Fehler, die im NTSC Verfahren nur manuell und unbefriedigend …   Deutsch Wikipedia

  • Phase margin — In electronic amplifiers, phase margin is the difference, measured in degrees, between the phase of the amplifier s output signal and 360°. In feedback amplifiers, the phase margin is measured at the frequency at which the open loop voltage gain… …   Wikipedia

  • Phase inversion — A phase inversion is the introduction of a phase difference of 180° into a waveform. As such, it is more properly called a polarity inversion, as phase can differ relative to frequency but polarity is absolute.For example, in a push pull power… …   Wikipedia

  • Signals intelligence operational platforms by nation — This article is a subset article under the main article Signals intelligence, which addresses the unifying conceptual and technical factors and common technologies in this intelligence discipline. This article deals with current signals… …   Wikipedia

  • Phase Frequency Detector — A phase frequency detector, in electronics, is a device which compares the phase of two input signals. It has two inputs which correspond to two different input signals, usually one from a voltage controlled oscillator (VCO) and another from some …   Wikipedia

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