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Optimum low cost two channel IIR orthonormal filter bank

Tuqan, Jamal and Vaidyanathan, P. P. (1997) Optimum low cost two channel IIR orthonormal filter bank. In: IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP-97), Munich. Vol.3. IEEE , Piscataway, NJ, pp. 2425-2428. ISBN 0818679190.

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In this paper, we statistically optimize a well known class of IIR two channel orthonormal filter banks parameterized by a single coefficient when subband quantizers are present. The optimization procedure is extremely simple and very fast compared for example to the linear programming method used in the FIR case to achieve similar compaction (coding) gains. The special form of the filters assure the existence of a zero at π which can be important for some wavelet applications and eliminate some of the major concerns that arise in the FIR design case. Finally, the compaction gain obtained is high and numerically very close to two (ideal case) for low pass spectra, high pass spectra and certain cases of multiband spectra. For these cases, the use of higher order IIR filters does not increase the compaction (coding) gain.

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Vaidyanathan, P. P.0000-0003-3003-7042
Additional Information:© Copyright 1997 IEEE. Reprinted with permission. Publication Date: 21-24 April 1997. Work supported in parts by Office of Naval Research grant N0001493-1-0231, Tektronix, Inc., and Rockwell International.
Subject Keywords:IIR filters; band-pass filters; filtering theory; optimization; quantization (signal); wavelet transforms; IIR filter banks; coding gain; compaction gain; high pass spectra; low pass spectra; multiband spectra; optimization procedure; subband quantizers; two channel orthonormal filter banks; wavelet applications
Record Number:CaltechAUTHORS:TUQiscassp97
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10780
Deposited On:10 Jun 2008
Last Modified:08 Nov 2021 21:11

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