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Tree-structured IIR/FIR octave-band filter banks with very low-complexity analysis 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.
2001 (English)In: IEEE International Symposium on Circuits and Systems,2001, 2001, 533-536 p.Conference paper, Published paper (Refereed)
Abstract [en]

A class of tree-structured octave-band digital filter banks is introduced. The filter banks make use of half-band IIR filters in the analysis bank and FIR filters in the synthesis bank which results in very low-complexity analysis filters. Further, the overall complexity is lower than, or comparable to, that of conventional filter banks. The overall filter banks approximate perfect reconstruction in the following sense. The distortion function is a linear-phase function approximating one in magnitude whereas the aliasing terms approximate zero. The filter banks are designed using linear and nonlinear programming. Design examples are included demonstrating the properties of the new filter banks

Place, publisher, year, edition, pages
2001. 533-536 p.
Keyword [en]
FIR octave-band filter banks IIR octave-band filter banks aliasing terms digital filter banks distortion function half-band IIR filters linear programming linear-phase function low-complexity analysis filters nonlinear programming perf
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-34419Local ID: 21428OAI: oai:DiVA.org:liu-34419DiVA: diva2:255267
Available from: 2009-10-10 Created: 2009-10-10

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http://ieeexplore.ieee.org/iel5/7344/19923/00921125.pdf?tp=&arnumber=921125&isnumber=19923

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Löwenborg, PerJohansson, HåkanWanhammar, Lars

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  • nn-NB
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