Single CFOA-based active Negative Group Delay circuits for signal anticipation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F23%3APU149776" target="_blank" >RIV/00216305:26220/23:PU149776 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2215098623002689" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2215098623002689</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jestch.2023.101590" target="_blank" >10.1016/j.jestch.2023.101590</a>

Result language

angličtina

Original language name

Single CFOA-based active Negative Group Delay circuits for signal anticipation

Original language description

The group delay of a signal prior to data monitoring is a crucial consideration in today’s real-time applications, especially for those that involve long sensor arrays or high-order filters. In this article, nine new second-order Negative Group Delay (NGD) circuits based on Current Feedback Operation Amplifier (CFOA) are proposed, and their transfer functions are demonstrated. These circuits have a wide range of applications, from audio to mechanical signals and sensor signal anticipation. An example design procedure is provided for one of the introduced circuits. A time-domain analysis is performed using both a single-tone sinusoidal and a band-limited audio recording in the frequency range of 1 Hz to 500 Hz. The article assesses the change in the signal using Root Mean Square Error (RMSE) and cross-correlation. Furthermore, the relationship between the NGD value and the operation range of the circuit is investigated and verified experimentally. The results show that an NGD value of approximately 100 us can be achieved with an amplitude error of 0.86% for a single-tone input and 1.54% for an audio recording, and an operation range of about 650 Hz.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

21100 - Other engineering and technologies

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2023

Confidentiality

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

Name of the periodical

Engineering Science and Technology, an International Journal

ISSN

2215-0986

e-ISSN

—

Volume of the periodical

48

Issue of the periodical within the volume

12

Country of publishing house

TR - TURKEY

Number of pages

8

Pages from-to

1-8

UT code for WoS article

001133484300001

EID of the result in the Scopus database

2-s2.0-85179118332