Design of paraunitary oversampled cosine-modulated filter banks

Joerg Kliewer; Alfred Mertins

doi:10.1109/ICASSP.1997.599355

Design of paraunitary oversampled cosine-modulated filter banks

Joerg Kliewer, Alfred Mertins

Institut für Signalverarbeitung

Christian-Albrechts Universität zu Kiel

Abstract

In this paper we derive perfect reconstruction (PR) conditions for oversampled cosine-modulated filter banks. The results can be regarded as a generalization of the known work for critical subsampling. We show that in the oversampled case we gain some additional degree of freedom, which can be exploited in the filter design process. This leads to PR prototypes with stopband attenuations being much higher than in the critically subsampled PR case. The filters designed as PR filters for the oversampled case can also serve as prototypes for critically subsampled cosine-modulated pseudo QMF banks.

Originalsprache	Englisch
Titel	1997 IEEE International Conference on Acoustics, Speech, and Signal Processing
Seitenumfang	4
Herausgeber (Verlag)	IEEE
Erscheinungsdatum	01.01.1997
Seiten	2073-2076
ISBN (Print)	0-8186-7919-0
DOIs	https://doi.org/10.1109/ICASSP.1997.599355
Publikationsstatus	Veröffentlicht - 01.01.1997
Veranstaltung	Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing - Munich, Deutschland Dauer: 21.04.1997 → 24.04.1997 Konferenznummer: 46531

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10.1109/ICASSP.1997.599355

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title = "Design of paraunitary oversampled cosine-modulated filter banks",

abstract = "In this paper we derive perfect reconstruction (PR) conditions for oversampled cosine-modulated filter banks. The results can be regarded as a generalization of the known work for critical subsampling. We show that in the oversampled case we gain some additional degree of freedom, which can be exploited in the filter design process. This leads to PR prototypes with stopband attenuations being much higher than in the critically subsampled PR case. The filters designed as PR filters for the oversampled case can also serve as prototypes for critically subsampled cosine-modulated pseudo QMF banks.",

author = "Joerg Kliewer and Alfred Mertins",

year = "1997",

month = jan,

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doi = "10.1109/ICASSP.1997.599355",

language = "English",

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series = "ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings",

publisher = "IEEE",

pages = "2073--2076",

booktitle = "1997 IEEE International Conference on Acoustics, Speech, and Signal Processing",

note = "Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing <br/>, ICASSP 1997 ; Conference date: 21-04-1997 Through 24-04-1997",

}

Kliewer, J & Mertins, A 1997, Design of paraunitary oversampled cosine-modulated filter banks. in 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, IEEE, S. 2073-2076, Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing
, Munich, Bayern, Deutschland, 21.04.97. https://doi.org/10.1109/ICASSP.1997.599355

Design of paraunitary oversampled cosine-modulated filter banks. / Kliewer, Joerg; Mertins, Alfred.
1997 IEEE International Conference on Acoustics, Speech, and Signal Processing. IEEE, 1997. S. 2073-2076 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings).

Publikation: Kapitel in Büchern/Berichten/Konferenzbänden › Konferenzbeitrag › Begutachtung

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T1 - Design of paraunitary oversampled cosine-modulated filter banks

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N2 - In this paper we derive perfect reconstruction (PR) conditions for oversampled cosine-modulated filter banks. The results can be regarded as a generalization of the known work for critical subsampling. We show that in the oversampled case we gain some additional degree of freedom, which can be exploited in the filter design process. This leads to PR prototypes with stopband attenuations being much higher than in the critically subsampled PR case. The filters designed as PR filters for the oversampled case can also serve as prototypes for critically subsampled cosine-modulated pseudo QMF banks.

AB - In this paper we derive perfect reconstruction (PR) conditions for oversampled cosine-modulated filter banks. The results can be regarded as a generalization of the known work for critical subsampling. We show that in the oversampled case we gain some additional degree of freedom, which can be exploited in the filter design process. This leads to PR prototypes with stopband attenuations being much higher than in the critically subsampled PR case. The filters designed as PR filters for the oversampled case can also serve as prototypes for critically subsampled cosine-modulated pseudo QMF banks.

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DO - 10.1109/ICASSP.1997.599355

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BT - 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing

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T2 - Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing <br/>

Y2 - 21 April 1997 through 24 April 1997

ER -

Design of paraunitary oversampled cosine-modulated filter banks

Abstract

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