Multichannel filter bank implementation and prototype-filter design based on magnitude response symmetrization

The present paper is devoted to the development of new techniques intended for multichannel signal processing. We study multichannel filter banks and their implementations for wideband monitoring tasks. The key point of the paper is a multichannel modification of the single-channel WOLA-algorithm, w...

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Published in:2015 XVIII International Conference on Soft Computing and Measurements (SCM) pp. 96 - 99
Main Authors: Dorokhov, A. V., Geppener, V. V., Gulvanskiy, V. V., Kaplun, D. I., Klionskiy, D. M.
Format: Conference Proceeding
Language:English
Published: IEEE 01.05.2015
Subjects:
Algorithm design and analysis
digital filter bank
Digital filters
Discrete Fourier transforms
Filter banks
Filtering algorithms
magnitude response symmetrization
Monitoring
multichannel modification
polyphase structure
prototype filter
weighted overlap-add algorithm (WOLA-algorithm)
Wideband
wideband monitoring
ISBN:9781467369602, 1467369608
Online Access:Get full text
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Abstract The present paper is devoted to the development of new techniques intended for multichannel signal processing. We study multichannel filter banks and their implementations for wideband monitoring tasks. The key point of the paper is a multichannel modification of the single-channel WOLA-algorithm, which can be considered as a generalization of a one-dimensional WOLA-algorithm for processing vector (multichannel) signals. The suggested algorithm is based on efficient calculation of vector discrete Fourier transform. We also discuss order reduction of a low-frequency prototype-filter on the basis of its magnitude response symmetrization. The efficiency of this approach for a particular prototype filter is demonstrated. The filter, whose characteristics are analyzed in the manuscript, is part of a multi-channel filter bank intended for monitoring the frequency range from 0 to 1 MHz.
AbstractList The present paper is devoted to the development of new techniques intended for multichannel signal processing. We study multichannel filter banks and their implementations for wideband monitoring tasks. The key point of the paper is a multichannel modification of the single-channel WOLA-algorithm, which can be considered as a generalization of a one-dimensional WOLA-algorithm for processing vector (multichannel) signals. The suggested algorithm is based on efficient calculation of vector discrete Fourier transform. We also discuss order reduction of a low-frequency prototype-filter on the basis of its magnitude response symmetrization. The efficiency of this approach for a particular prototype filter is demonstrated. The filter, whose characteristics are analyzed in the manuscript, is part of a multi-channel filter bank intended for monitoring the frequency range from 0 to 1 MHz.
Author Kaplun, D. I.
Geppener, V. V.
Klionskiy, D. M.
Gulvanskiy, V. V.
Dorokhov, A. V.
Author_xml – sequence: 1
  givenname: A. V.
  surname: Dorokhov
  fullname: Dorokhov, A. V.
  email: d0479515@yandex.ru
  organization: Comput. Sci. Dept., St. Petersburg Electrotech. Univ. LETI, St. Petersburg, Russia
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  givenname: V. V.
  surname: Geppener
  fullname: Geppener, V. V.
  email: geppener@mail.ru
  organization: Comput. Sci. Dept., St. Petersburg Electrotech. Univ. LETI, St. Petersburg, Russia
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  givenname: V. V.
  surname: Gulvanskiy
  fullname: Gulvanskiy, V. V.
  email: slava-a-a@mail.ru
  organization: Comput. Sci. Dept., St. Petersburg Electrotech. Univ. LETI, St. Petersburg, Russia
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  givenname: D. I.
  surname: Kaplun
  fullname: Kaplun, D. I.
  email: mitya_kapl@front.ru
  organization: Comput. Sci. Dept., St. Petersburg Electrotech. Univ. LETI, St. Petersburg, Russia
– sequence: 5
  givenname: D. M.
  surname: Klionskiy
  fullname: Klionskiy, D. M.
  email: klio2003@list.ru
  organization: Comput. Sci. Dept., St. Petersburg Electrotech. Univ. LETI, St. Petersburg, Russia
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Snippet The present paper is devoted to the development of new techniques intended for multichannel signal processing. We study multichannel filter banks and their...
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StartPage 96
SubjectTerms Algorithm design and analysis
digital filter bank
Digital filters
Discrete Fourier transforms
Filter banks
Filtering algorithms
magnitude response symmetrization
Monitoring
multichannel modification
polyphase structure
prototype filter
weighted overlap-add algorithm (WOLA-algorithm)
Wideband
wideband monitoring
Title Multichannel filter bank implementation and prototype-filter design based on magnitude response symmetrization
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