Publication detail

Equiripple Digital Filter in Quadrature Mirror Filter Banks for Nuclear Magnetic Tomography

GESCHEIDTOVÁ, E. KUBÁSEK, R. SMÉKAL, Z. BARTUŠEK, K.

Original Title

Equiripple Digital Filter in Quadrature Mirror Filter Banks for Nuclear Magnetic Tomography

English Title

Equiripple Digital Filter in Quadrature Mirror Filter Banks for Nuclear Magnetic Tomography

Type

journal article - other

Language

en

Original Abstract

The wavelet transform represents a very favourite tool for removing noise from useful signal on many areas of digital signal processing. A problem consists in that selected wavelet functions are mostly used, that in advance define the pulse characteristics of quadrature mirror filters (QMF) of the type of lowpass and highpass filters in a bank of filters. The paper deals with the design of QMF bank using standard design algorithms for digital filters of the type of FIR. The Remez algorithm is used here as an example for the design of a bank of partial digital filters. The design method leads to a filter bank with uniform ripple and enables fulfilling an optional tolerance field in both pass band and stop band with optimum filter order N  1.

English abstract

The wavelet transform represents a very favourite tool for removing noise from useful signal on many areas of digital signal processing. A problem consists in that selected wavelet functions are mostly used, that in advance define the pulse characteristics of quadrature mirror filters (QMF) of the type of lowpass and highpass filters in a bank of filters. The paper deals with the design of QMF bank using standard design algorithms for digital filters of the type of FIR. The Remez algorithm is used here as an example for the design of a bank of partial digital filters. The design method leads to a filter bank with uniform ripple and enables fulfilling an optional tolerance field in both pass band and stop band with optimum filter order N  1.

Keywords

Quadrature mirror filters,Remez algorithm, QMF bank

RIV year

2007

Released

01.02.2007

Location

JIžní Korea

Pages from

141

Pages to

152

Pages count

11

BibTex


@article{BUT44853,
  author="Eva {Gescheidtová} and Radek {Kubásek} and Zdeněk {Smékal} and Karel {Bartušek}",
  title="Equiripple Digital Filter in Quadrature Mirror Filter Banks for Nuclear Magnetic Tomography",
  annote="The wavelet transform represents a very favourite tool for removing noise from useful signal on many areas of digital signal processing. A problem consists in that selected wavelet functions are mostly used, that in advance define the pulse characteristics of quadrature mirror filters (QMF) of the type of lowpass and highpass filters in a bank of filters. The paper deals with the design of QMF bank using standard design algorithms for digital filters of the type of FIR. The Remez algorithm is used here as an example for the design of a bank of partial digital filters. The design method leads to a filter bank with uniform ripple and enables fulfilling an optional tolerance field in both pass band and stop band with optimum filter order N  1.",
  chapter="44853",
  journal="International Transaction on Computer Science and Engineering",
  number="1",
  volume="37",
  year="2007",
  month="february",
  pages="141--152",
  type="journal article - other"
}