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Article: Roundoff noise minimization in a modified direct-form delta operator IIR structure

TitleRoundoff noise minimization in a modified direct-form delta operator IIR structure
Authors
Wong, NNg, TS
KeywordsElectronics engineering - electrical engineering
Issue Date2000
PublisherIEEE.
Citation
Ieee Transactions On Circuits And Systems Ii: Analog And Digital Signal Processing, 2000, v. 47 n. 12, p. 1533-1536 How to Cite?
DOI: http://dx.doi.org/10.1109/82.899648
AbstractAmong various direct-form delta operator realized filter structures, the delta transposed direct-form II (δDFIIt) has been shown to produce the lowest roundoff noise gain in finite wordlength implementations. Recent analyses focus on the optimization of the free parameter Δ of the delta operator, with scaling of the structure to prevent arithmetic overflow. This paper proposes a modified δDFIIt second-order section in which the Δs and filter coefficients at different branches are separately scaled to achieve improved roundoff noise gain minimization. Expressions for the filter coefficients are derived, and reduction of roundoff noise gain is verified by numerical examples.
Persistent Identifierhttp://hdl.handle.net/10722/42866
ISSN
1057-7130
ISI Accession Number ID
WOS:000166849700021
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorWong, Nen_HK
dc.contributor.authorNg, TSen_HK
dc.date.accessioned2007-03-23T04:33:41Z-
dc.date.available2007-03-23T04:33:41Z-
dc.date.issued2000en_HK
dc.identifier.citationIeee Transactions On Circuits And Systems Ii: Analog And Digital Signal Processing, 2000, v. 47 n. 12, p. 1533-1536en_HK
dc.identifier.issn1057-7130en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42866-
dc.description.abstractAmong various direct-form delta operator realized filter structures, the delta transposed direct-form II (δDFIIt) has been shown to produce the lowest roundoff noise gain in finite wordlength implementations. Recent analyses focus on the optimization of the free parameter Δ of the delta operator, with scaling of the structure to prevent arithmetic overflow. This paper proposes a modified δDFIIt second-order section in which the Δs and filter coefficients at different branches are separately scaled to achieve improved roundoff noise gain minimization. Expressions for the filter coefficients are derived, and reduction of roundoff noise gain is verified by numerical examples.en_HK
dc.format.extent132597 bytes-
dc.format.extent8772 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processingen_HK
dc.rights©2000 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.-
dc.subjectElectronics engineering - electrical engineeringen_HK
dc.titleRoundoff noise minimization in a modified direct-form delta operator IIR structureen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1057-7130&volume=47&issue=12&spage=1533&epage=1536&date=2000&atitle=Roundoff+noise+minimization+in+a+modified+direct-form+delta+operator+IIR+structureen_HK
dc.identifier.emailWong, N:nwong@eee.hku.hken_HK
dc.identifier.emailNg, TS:tsng@eee.hku.hken_HK
dc.identifier.authorityWong, N=rp00190en_HK
dc.identifier.authorityNg, TS=rp00159en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/82.899648en_HK
dc.identifier.scopuseid_2-s2.0-0034459135en_HK
dc.identifier.hkuros58650-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034459135&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume47en_HK
dc.identifier.issue12en_HK
dc.identifier.spage1533en_HK
dc.identifier.epage1536en_HK
dc.identifier.isiWOS:000166849700021-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWong, N=35235551600en_HK
dc.identifier.scopusauthoridNg, TS=7402229975en_HK
dc.identifier.issnl1057-7130-

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