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Proceedings Paper

Matched low-pass filter design for orthogonal IIR filter banks
Author(s): Larry Wilkinson; Ajit S. Bopardikar; Raghuveer M. Rao; Harold H. Szu
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Paper Abstract

This paper addresses a solution to the problem of designing the low pass filter of a two-channel IIR orthogonal perfect reconstruction filter bank to match a specified frequency response. The derived solution treats independently the numerator and denominator in the rational transfer function. Based on the proposed solutions, a low pass filter is matched to a desired frequency response and the frequency response constrained to be have multiple zeroes at (pi) . The end result is a low pass filter with a smoother response function than FIR based solutions for a given number of filter coefficients while optimal in the sense of being close to desired functions. The paper concludes by demonstrating the solution by matching the low pass filter of a Meyer wavelet.

Paper Details

Date Published: 8 March 2002
PDF: 6 pages
Proc. SPIE 4738, Wavelet and Independent Component Analysis Applications IX, (8 March 2002); doi: 10.1117/12.458732
Show Author Affiliations
Larry Wilkinson, Eastman Kodak Co. (United States)
Ajit S. Bopardikar, Applied Science Fiction Inc. (United States)
Raghuveer M. Rao, Rochester Institute of Technology (United States)
Harold H. Szu, Office of Naval Research (United States)

Published in SPIE Proceedings Vol. 4738:
Wavelet and Independent Component Analysis Applications IX
Harold H. Szu; James R. Buss, Editor(s)

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