phase distortion


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phase distortion

[′fāz di‚stȯr·shən]
(communications)
The distortion which occurs in an instrument when the relative phases of the input signal differ from those of the output signal.
References in periodicals archive ?
To get rid of phase distortion, decrease the harmonics pollution, and get faster dynamic response, a Predictive Current Control (PCC) strategy combined with PLL and band-stop filter is designed.
For second order Butterworth filtering, there is a phase lag of 90[degrees] between input and output of the filter at cutoff frequency causing phase distortion.
Using MARP and DP may be a problem in a serial task because discontinuous movements may create phase distortion in continuous relative phase curves.
The goal of the proposed method is to solve the phase distortion problem caused by acoustic refraction and accurately reconstruct the microwave absorption properties.
These result in amplitude attenuation, wavelet phase distortion and loss of resolution.
Linear devices such as filters typically add phase distortion and group delay to the signal, and nonlinear components such as amplifiers cause intermodulation (IM) products that generate additional harmonics.
The criteria for amplitude and phase distortion are the same.
In both cases the amplitude response of the whole (N-order) filter is identical but the phase response is not: the phase distortion caused by the causal filter is the double of that of its N/2-order section, whereas that of the acausal filter is zero (the "direct" and "reverse" phase distortions mutually cancel)(3).
1) The article then describes the importance of PA linearity and the method of determining linearity based on the gain compression response (AM/AM) and the phase distortion (AM/PM) characteristics of the PA.
The wiring is wrong, the sound is all boom and tizz and there's phase distortion.
The align block analyzes two signals, a reference signal and a degraded version of the reference signal, for timing alignment, and gain and phase distortion.