NDLI: Frequency Transformations of IIR Filters with Filter Bank Applications

Content Provider	IEEE Xplore Digital Library
Author	Milic, L. Damjanovic, S. Nikolic, M.
Copyright Year	2006
Description	Author affiliation: Mihajlo Pupin Inst., Belgrade (Milic, L.; Damjanovic, S.; Nikolic, M.)
Abstract	Low-complexity half-band IIR filters implemented as two-path polyphase structures use all-pass sub-filters as polyphase components. With a simple first-order frequency transformation applied in the half-band filter all-pass sections, the new filter is obtained with the cut-off frequency at the desired position. In this paper, the authors apply the frequency transformations to construct minimum phase filters and filter pairs of desired regularity order, and with the cut-off frequency at an arbitrary location. In this way, an IIR filter design problem simplifies to the half-band filter design problem. Several solutions based on half-band filters and frequency transformations are shown: (i) multilevel IIR filter bank composed of IIR filter pairs with desirable regularity order and with changeable crossover frequency in sub-bands, (ii) IIR implementation of 2/3, 1/3 two-channel resempler, (iii) simple and effective approach to designing band-pass/band-stop filter pairs
Starting Page	1051
Ending Page	1054
File Size	3625331
Page Count	4
File Format	PDF
ISBN	1424403871
DOI	10.1109/APCCAS.2006.342269
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-12-04
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	IIR filters Filter bank Band pass filters Low pass filters Cutoff frequency Digital filters Transfer functions Poles and zeros Prototypes Electronic mail multirate filters filter banks frequency transformations half-band filters IIR filter design lattice wave digital filters
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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