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Tree-structured IIR...
Tree-structured IIR/FIR uniform-band and octave-band filter banks with very low-complexity analysis or synthesis filters
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Elias, Elizabeth (författare)
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- Löwenborg, Per, 1974- (författare)
- Linköpings universitet,Tekniska högskolan,Elektroniksystem
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- Johansson, Håkan, 1969- (författare)
- Linköpings universitet,Institutionen för systemteknik
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- Wanhammar, Lars, 1944- (författare)
- Linköpings universitet,Tekniska högskolan,Elektroniksystem
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(creator_code:org_t)
- 2003
- 2003
- Engelska.
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Ingår i: Signal Processing. - 0165-1684 .- 1872-7557. ; 83:9, s. 1997-2009
- Relaterad länk:
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http://www.sciencedi...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Nyckelord
- Uniform-band filter banks; Octave-band filter banks; Tree-structured filter banks; Asymmetric filter banks; IIR filters; FIR filters; Low complexity
- TECHNOLOGY
- TEKNIKVETENSKAP
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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