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Tree-structured IIR/FIR uniform-band and octave-band filter banks with very low-complexity analysis or synthesis filters
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Electronics System.
Linköping University, Department of Electrical Engineering.
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Electronics System.
2003 (English)In: Signal Processing, ISSN 0165-1684, Vol. 83, no 9, 1997-2009 p.Article in journal (Refereed) Published
Abstract [en]

This paper introduces new tree-structured uniform-band and octave-band digital filter banks (FBs). These FBs make use of half-band IIR filters in the analysis FBs and FIR filters in the synthesis FBs. The resulting FBs are asymmetric in the sense that the analysis FB has a very low arithmetic complexity whereas that in the synthesis FB is higher. However, compared with other asymmetric FBs, the proposed ones have in many cases a lower overall arithmetic complexity and delay. The proposed FBs have magnitude distortion but no phase distortion, further, the aliasing components are either zero (uniform-band case) or approximately zero (octave-band case). The FBs are designed using linear and nonlinear programming. Design examples are included demonstrating the properties of the proposed filters banks. ⌐ 2003 Published by Elsevier B.V.

Place, publisher, year, edition, pages
2003. Vol. 83, no 9, 1997-2009 p.
Keyword [en]
Uniform-band filter banks; Octave-band filter banks; Tree-structured filter banks; Asymmetric filter banks; IIR filters; FIR filters; Low complexity
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-34402DOI: 10.1016/S0165-1684(03)00131-2Local ID: 21411OAI: oai:DiVA.org:liu-34402DiVA: diva2:255250
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2011-01-13

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Publisher's full texthttp://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6V18-48PDTW9-1-88&_cdi=5668&_user=650414&_orig=browse&_coverDate=09%2F30%2F2003&_sk=999169990&view=c&wchp=dGLbVzb-zSkzS&md5=3a4b8510291c0e900b4f5897864f1e8a&ie=/sdarticle.pdf

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Löwenborg, PerJohansson, HåkanWanhammar, Lars

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