Design of Nonuniform Filter Banks with Frequency Domain Criteria

Document type: Researchreports
Full text:
Author(s): Jan Mark de Haan, Sven Nordholm, Ingvar Claesson
Title: Design of Nonuniform Filter Banks with Frequency Domain Criteria
Series: Research Report
Year: 2004
Issue: 3
ISSN: 1103-1581
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Signal Processing (Sektionen för teknik – avd. för signalbehandling)
School of Engineering S- 372 25 Ronneby
+46 455 38 50 00
http://www.tek.bth.se/
Authors e-mail: jmd@bth.se
Language: English
Abstract: This paper presents methods for the design of nonuniform filter
banks. The filter bank structure is obtained from an uniformly
modulated filter bank by using an allpass transform which has a
lossless frequency function and a nonlinear phase function. The
proposed design methods include linear and quadratic frequency
domain criteria and linear constraints. Considered applications
are subband adaptive filtering and subband coding. Analysis filter
banks and synthesis filter banks are designed in two subsequent
stages, and design objectives include minimization of subband
aliasing as well as reconstruction output residual aliasing
components on an individual basis. This way to formulate design
objectives is appropriate for filter banks used in subband
adaptive filtering. Other design objectives are to optimize the
overall filter bank response for low amplitude and phase
distortion. Designs with phase compensation for linear phase
overall response are included. Examples are included of filter
banks with increasing bandwidth.
Subject: Signal Processing\Filter Design
URN: urn:nbn:se:bth-00262
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