Detail publikace

Analog Filters With Arbitrarily Adjustable Frequency Response

KOTON, J. JEŘÁBEK, J. KUBÁNEK, D. DVOŘÁK, J.

Originální název

Analog Filters With Arbitrarily Adjustable Frequency Response

Typ

kapitola v knize

Jazyk

angličtina

Originální abstrakt

Besides frequency filters being designed to feature specific and fixed parameters, filters with dynamically adjustable transfer function are also required in signal processing. Understanding the fractional order α as a new controllable parameter of the fractional-order filters, the concept of arbitrarily adjustable analogue frequency filters is proposed and discussed in detail within this chapter. The general transfer functions are presented that feature the possibility of adjusting one or even all filter’s parameters by means of passive components and/or particular parameters of active elements used to implement the circuit. Based on the described transfer functions, the general topologies of the function systems are presented that are used as initial for the design of fractional-order frequency filters employing required types of active elements. As a result, the simplest and minimal in configuration circuit solutions can be synthesized that fully follow the designer’s initial requirements on filter’s parameter(s) adjustability and tunability. To show the use of the theoretical presumptions, the fractional-order low- and high-pass filters are designed, where operational transconductance amplifiers (OTAs) and adjustable current amplifiers (ACAs) are advantageously employed to introduce the electronic control and adjustment of the filter parameters.

Klíčová slova

Fractional-order filters, Analogue signal processing, Tunable, Approximation, Filter design guide

Autoři

KOTON, J.; JEŘÁBEK, J.; KUBÁNEK, D.; DVOŘÁK, J.

Vydáno

16. 8. 2018

Nakladatel

Academic Press

ISBN

9780128161524

Kniha

Fractional Order Systems: Optimization, Control, Circuit Realizations and Applications

Edice

Advances in Nonlinear Dynamics and Chaos (ANDC)

Číslo edice

1

Strany od

383

Strany do

419

Strany počet

36

URL

https://www.sciencedirect.com/book/9780128161524/fractional-order-systems#book-description

BibTex

@inbook{BUT150678,
  author="Jaroslav {Koton} and Jan {Jeřábek} and David {Kubánek} and Jan {Dvořák}",
  title="Analog Filters With Arbitrarily Adjustable Frequency Response",
  booktitle="Fractional Order Systems: Optimization, Control, Circuit Realizations and Applications",
  year="2018",
  publisher="Academic Press",
  series="Advances in Nonlinear Dynamics and Chaos (ANDC)",
  edition="1",
  pages="383--419",
  doi="10.1016/C2017-0-04459-2",
  isbn="9780128161524",
  url="https://www.sciencedirect.com/book/9780128161524/fractional-order-systems#book-description"
}