Advanced frequency equalizers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00325080" target="_blank" >RIV/68407700:21230/18:00325080 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1109/ASDAM.2018.8544669" target="_blank" >http://dx.doi.org/10.1109/ASDAM.2018.8544669</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ASDAM.2018.8544669" target="_blank" >10.1109/ASDAM.2018.8544669</a>

Result language

angličtina

Original language name

Advanced frequency equalizers

Original language description

A considerable proportion of data processed in contemporary electronic systems originate in analogue sensors and have to be pre-processed prior to digitization. Pre-processing usually means voltage amplification and some degree (sometimes rather considerable) of frequency response equalization. In many cases, like image processing and similar tasks, the sensor physical dimensions constitute a strict limitation to its ability to discern small details of the observed physical quantity. In order to keep the system overall resolution power as close to the physical limits of the particular sensor in question, efficient equalization of its spatial frequency response is required. As a difference from the simple common electronic circuits, the high-end frequency response of a sensor with non-zero effective aperture does not follow the minimum-phase behaviour. Attempts to equalize the high frequency limitations in such systems by common minimum-phase high-boost circuits lead to crude errors in response to transient phenomena in the sensed physical quantity, with detrimental effects to the accuracy of such a system. This paper shows several examples of relatively easy solutions of non-minimum-phase electronic equalizer circuits (some already patented, other patents pending) avoiding this problem. As an additional benefit, some of these new designs permit to create essentially flat phase response in the central frequency range of selective circuits, as well as other interesting zero-phase frequency dependent amplitude responses.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

ASDAM 2018

ISBN

978-1-5386-7488-8

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

31-34

Publisher name

Slovak Academy of Science

Place of publication

Košice

Event location

Smolenice

Event date

Oct 21, 2018

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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