Efficiently VLSI-realizable prototype filters for modulated filter banks

Tanja Karp; Alfred Mertins; Truong Q. Nguyen

doi:10.1109/ICASSP.1997.599562

Efficiently VLSI-realizable prototype filters for modulated filter banks

Tanja Karp, Alfred Mertins, Truong Q. Nguyen

Institute of Signal Processing

Hamburg University of Technology

Abstract

This paper presents methods for the efficient realization of prototype filters for modulated filter banks. The implementation is based on the lattice structure of the polyphase filters. The lattice coefficients, representing rotations, are approximated by a small number of simple μ-rotations each of which can be realized by some shift and add operations instead of a multiplication. Since the lattice structure is robust against coefficient quantization we do not loose the perfect reconstruction (PR) property of the filter bank when doing this approximation. Frequency responses of the original and approximated prototype filters are compared in terms of complexity and stopband attenuation.

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	2445-2448
ISBN (Print)	0-8186-7919-0
DOIs	https://doi.org/10.1109/ICASSP.1997.599562
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.1997.599562

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@inproceedings{dcfe849cd7694a6d96c235becfb0e8ee,

title = "Efficiently VLSI-realizable prototype filters for modulated filter banks",

abstract = "This paper presents methods for the efficient realization of prototype filters for modulated filter banks. The implementation is based on the lattice structure of the polyphase filters. The lattice coefficients, representing rotations, are approximated by a small number of simple μ-rotations each of which can be realized by some shift and add operations instead of a multiplication. Since the lattice structure is robust against coefficient quantization we do not loose the perfect reconstruction (PR) property of the filter bank when doing this approximation. Frequency responses of the original and approximated prototype filters are compared in terms of complexity and stopband attenuation.",

author = "Tanja Karp and Alfred Mertins and Nguyen, {Truong Q.}",

year = "1997",

month = jan,

day = "1",

doi = "10.1109/ICASSP.1997.599562",

language = "English",

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

publisher = "IEEE",

pages = "2445--2448",

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",

}

Karp, T, Mertins, A & Nguyen, TQ 1997, Efficiently VLSI-realizable prototype filters for 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. 2445-2448, 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.1997.599562

Efficiently VLSI-realizable prototype filters for modulated filter banks. / Karp, Tanja; Mertins, Alfred; Nguyen, Truong Q.
1997 IEEE International Conference on Acoustics, Speech, and Signal Processing. IEEE, 1997. p. 2445-2448 (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 - Efficiently VLSI-realizable prototype filters for modulated filter banks

AU - Karp, Tanja

AU - Mertins, Alfred

AU - Nguyen, Truong Q.

N1 - Conference code: 46531

PY - 1997/1/1

Y1 - 1997/1/1

N2 - This paper presents methods for the efficient realization of prototype filters for modulated filter banks. The implementation is based on the lattice structure of the polyphase filters. The lattice coefficients, representing rotations, are approximated by a small number of simple μ-rotations each of which can be realized by some shift and add operations instead of a multiplication. Since the lattice structure is robust against coefficient quantization we do not loose the perfect reconstruction (PR) property of the filter bank when doing this approximation. Frequency responses of the original and approximated prototype filters are compared in terms of complexity and stopband attenuation.

AB - This paper presents methods for the efficient realization of prototype filters for modulated filter banks. The implementation is based on the lattice structure of the polyphase filters. The lattice coefficients, representing rotations, are approximated by a small number of simple μ-rotations each of which can be realized by some shift and add operations instead of a multiplication. Since the lattice structure is robust against coefficient quantization we do not loose the perfect reconstruction (PR) property of the filter bank when doing this approximation. Frequency responses of the original and approximated prototype filters are compared in terms of complexity and stopband attenuation.

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U2 - 10.1109/ICASSP.1997.599562

DO - 10.1109/ICASSP.1997.599562

M3 - Conference contribution

SN - 0-8186-7919-0

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

SP - 2445

EP - 2448

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/>

Y2 - 21 April 1997 through 24 April 1997

ER -

Efficiently VLSI-realizable prototype filters for modulated filter banks

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