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

Institute of Signal Processing

University of 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.

Original language	English
Title of host publication	1997 IEEE International Conference on Acoustics, Speech, and Signal Processing
Number of pages	4
Publisher	IEEE
Publication date	01.01.1997
Pages	2073-2076
ISBN (Print)	0-8186-7919-0
DOIs	https://doi.org/10.1109/ICASSP.1997.599355
Publication status	Published - 01.01.1997
Event	Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing - Munich, Germany Duration: 21.04.1997 → 24.04.1997 Conference number: 46531

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10.1109/ICASSP.1997.599355

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@inproceedings{d98e309fff764d379103972d5c875f1d,

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,

day = "1",

doi = "10.1109/ICASSP.1997.599355",

language = "English",

isbn = "0-8186-7919-0",

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, pp. 2073-2076, Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing
, Munich, Bavaria, Germany, 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. p. 2073-2076 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings).

Research output: Chapters in Books/Reports/Conference Proceedings › Conference contribution › peer-review

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T1 - Design of paraunitary oversampled cosine-modulated filter banks

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AU - Mertins, Alfred

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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

M3 - Conference contribution

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T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

SP - 2073

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

PB - IEEE

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

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ER -

Design of paraunitary oversampled cosine-modulated filter banks

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