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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| Veröffentlicht in: | 2015 XVIII International Conference on Soft Computing and Measurements (SCM) S. 96 - 99 |
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| Hauptverfasser: | , , , , |
| Format: | Tagungsbericht |
| Sprache: | Englisch |
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IEEE
01.05.2015
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| ISBN: | 9781467369602, 1467369608 |
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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. |
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| 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 – sequence: 2 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 – sequence: 3 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 – sequence: 4 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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| 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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