Publication detail

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

BALOGLU, O. CICEKOGLU, O. HERENCSÁR, N.

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

Audio signal processing; Current feedback operation amplifier; Design method; Negative Group Delay; NGD; Time-domain validation

Authors

BALOGLU, O.; CICEKOGLU, O.; HERENCSÁR, N.

Released

2. 12. 2023

Publisher

Elsevier

Location

NEW DELHI

ISBN

2215-0986

Periodical

Engineering Science and Technology, an International Journal

Year of study

48

Number

12

State

Republic of Turkey

Pages from

1

Pages to

8

Pages count

8

URL

https://www.sciencedirect.com/science/article/pii/S2215098623002689

Full text in the Digital Library

http://hdl.handle.net/11012/244171

BibTex

@article{BUT185652,
  author="Onat {Baloglu} and Oguzhan {Cicekoglu} and Norbert {Herencsár}",
  title="Single CFOA-based active Negative Group Delay circuits for signal anticipation",
  journal="Engineering Science and Technology, an International Journal",
  year="2023",
  volume="48",
  number="12",
  pages="1--8",
  doi="10.1016/j.jestch.2023.101590",
  issn="2215-0986",
  url="https://www.sciencedirect.com/science/article/pii/S2215098623002689"
}