Phase Characteristic

Phase Characteristic

 

in linear circuits, a graphic curve expressing the dependence of the phase shift between the harmonic oscillations at the input and output terminals on the frequency of the harmonic oscillations at the input. The phase characteristic is mostly used as a means of evaluating phase distortions of complex signals, such as video signals. Such distortions may be caused by unequal time delays of individual harmonic components traveling through the circuit. The requirements that must be met by the phase characteristic are particularly stringent for circuits in radio-engineering systems that provide phase processing of signals, in multichannel communication systems, and in measuring devices. In the great majority of circuits, there is a one-to-one relationship between the phase characteristic and the amplitude characteristic.

References in periodicals archive ?
The phase characteristics of the wave help monitor the change in velocity, which can be further mapped to the physical quantity being measured.
It offers developers complete independent control over waveform current, duration, rate and phase characteristics.
The contract includes the supply of components and carry out the necessary works whose purpose will be:-supply of measuring equipment-complete automated measurement system capable of measuring amplitude and phase characteristics of the antenna radiation in the far-field zone in the frequency domain,-Installation and commissioning of the supplied equipment in the anechoic chamber type FAR and training in the manual that came apparatus-checking measurements to obtain the assumed parameters of the whole measurement system.
At this mode the partial discharge phase characteristics can be measured and analyzed.
The analysis allows the circuit's open-loop gain and phase characteristics to be determined while the loop remains closed and requires no changes to the schematic.
The conclusions after the analysis of the power spectral density, magnitude and phase characteristics of the arm type robot in his movement in the upper or downer direction are: the small frequencies there are changed by the spring mounted in the second joint of the structure; the delay between the change of the movement direction increases all the frequencies of the spectrum; the delay on the half of the space determine the increases of the all frequencies of the spectrum.
Plus, frequency response and phase characteristics can vary from probe to probe, so each probe and cable must be characterized and accounted for to ensure the truest representation of the signal.
BSP enables designers to have a full understanding of how diffraction impacts key system performance measures by providing high-accuracy computations of the optical beam intensity, amplitude and phase characteristics.
Full multiple line simulation and reach out to 24,000 feet in 500-foot increments is achieved using passive components providing accurate impedance, attenuation and line phase characteristics, combined with insignificant inter-line cross talk and background noise performance.
The automated Bessel filter can be used to implement complex filters with linear phase characteristics.
This patent covers the use of a biocompatible connective tissue repair composition, which comprises a therapeutic material and a carrier comprising a means for achieving reverse phase characteristics, and methods for using said composition.