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. IEEE , Piscataway, NJ, pp. 2425-2428. ISBN 0818679190 http://resolver.caltech.edu/CaltechAUTHORS:TUQiscassp97
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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.
|Item Type:||Book Section|
|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|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Kristin Buxton|
|Deposited On:||10 Jun 2008|
|Last Modified:||26 Dec 2012 10:04|
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