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Article: IIR approximation of FIR filters via discrete-time vector fitting

TitleIIR approximation of FIR filters via discrete-time vector fitting
Authors
KeywordsApproximation algorithm
Finite-impulse-response (FIR) filters
Infinite-impulse-response (IIR) filters
Vector fitting
Issue Date2008
PublisherIEEE.
Citation
Ieee Transactions On Signal Processing, 2008, v. 56 n. 3, p. 1296-1302 How to Cite?
AbstractWe present a novel technique for approximating finite-impulse-response (FIR) filters with infinite-impulse-response (IIR) structures through extending the vector fitting (VF) algorithm, used extensively for continuous-time frequency-domain rational approximation, to its discrete-time counterpart called VFz. VFz directly computes the candidate filter poles and iteratively relocates them for progressively better approximation. Each VFz iteration consists of the solutions of an overdetermined linear equation and an eigenvalue problem, with real-domain arithmetic to accommodate complex poles. Pole flipping and maximum pole radius constraint guarantee stability and robustness against finite-precision implementation. Comparison against existing algorithms confirms that VFz generally exhibits fast convergence and produces highly accurate IIR approximants. © 2008 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/57444
ISSN
2015 Impact Factor: 2.624
2015 SCImago Journal Rankings: 2.004
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWong, Nen_HK
dc.contributor.authorLei, CUen_HK
dc.date.accessioned2010-04-12T01:36:59Z-
dc.date.available2010-04-12T01:36:59Z-
dc.date.issued2008en_HK
dc.identifier.citationIeee Transactions On Signal Processing, 2008, v. 56 n. 3, p. 1296-1302en_HK
dc.identifier.issn1053-587Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/57444-
dc.description.abstractWe present a novel technique for approximating finite-impulse-response (FIR) filters with infinite-impulse-response (IIR) structures through extending the vector fitting (VF) algorithm, used extensively for continuous-time frequency-domain rational approximation, to its discrete-time counterpart called VFz. VFz directly computes the candidate filter poles and iteratively relocates them for progressively better approximation. Each VFz iteration consists of the solutions of an overdetermined linear equation and an eigenvalue problem, with real-domain arithmetic to accommodate complex poles. Pole flipping and maximum pole radius constraint guarantee stability and robustness against finite-precision implementation. Comparison against existing algorithms confirms that VFz generally exhibits fast convergence and produces highly accurate IIR approximants. © 2008 IEEE.en_HK
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofIEEE Transactions on Signal Processingen_HK
dc.rights©2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectApproximation algorithmen_HK
dc.subjectFinite-impulse-response (FIR) filtersen_HK
dc.subjectInfinite-impulse-response (IIR) filtersen_HK
dc.subjectVector fittingen_HK
dc.titleIIR approximation of FIR filters via discrete-time vector fittingen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1053-587X&volume=56&issue=3&spage=1296&epage=1302&date=2008&atitle=IIR+approximation+of+FIR+filters+via+discrete-time+vector+fittingen_HK
dc.identifier.emailWong, N:nwong@eee.hku.hken_HK
dc.identifier.authorityWong, N=rp00190en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/TSP.2007.908935en_HK
dc.identifier.scopuseid_2-s2.0-40749092400en_HK
dc.identifier.hkuros145029-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-40749092400&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume56en_HK
dc.identifier.issue3en_HK
dc.identifier.spage1296en_HK
dc.identifier.epage1302en_HK
dc.identifier.isiWOS:000253358400034-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWong, N=35235551600en_HK
dc.identifier.scopusauthoridLei, CU=18134021100en_HK

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