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  • Elias, Elizabeth, et al. (author)
  • Tree-structured IIR/FIR uniform-band and octave-band filter banks with very low-complexity analysis or synthesis filters
  • 2003
  • In: Signal Processing. - 0165-1684 .- 1872-7557. ; 83:9, s. 1997-2009
  • Journal article (peer-reviewed)abstract
    • 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.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Johansson, Håkan, 19 ... (1)
Löwenborg, Per, 1974 ... (1)
Wanhammar, Lars, 194 ... (1)
Elias, Elizabeth (1)
University
Linköping University (1)
Language
English (1)
Year

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