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Article: Roundoff noise minimization in a modified direct-form delta operator IIR structure
Title | Roundoff noise minimization in a modified direct-form delta operator IIR structure |
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Authors | |
Keywords | Electronics engineering - electrical engineering |
Issue Date | 2000 |
Publisher | IEEE. |
Citation | Ieee Transactions On Circuits And Systems Ii: Analog And Digital Signal Processing, 2000, v. 47 n. 12, p. 1533-1536 How to Cite? |
Abstract | Among 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 Identifier | http://hdl.handle.net/10722/42866 |
ISSN | |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Wong, N | en_HK |
dc.contributor.author | Ng, TS | en_HK |
dc.date.accessioned | 2007-03-23T04:33:41Z | - |
dc.date.available | 2007-03-23T04:33:41Z | - |
dc.date.issued | 2000 | en_HK |
dc.identifier.citation | Ieee Transactions On Circuits And Systems Ii: Analog And Digital Signal Processing, 2000, v. 47 n. 12, p. 1533-1536 | en_HK |
dc.identifier.issn | 1057-7130 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/42866 | - |
dc.description.abstract | Among 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.extent | 132597 bytes | - |
dc.format.extent | 8772 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.format.mimetype | text/plain | - |
dc.language | eng | en_HK |
dc.publisher | IEEE. | en_HK |
dc.relation.ispartof | IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing | en_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.subject | Electronics engineering - electrical engineering | en_HK |
dc.title | Roundoff noise minimization in a modified direct-form delta operator IIR structure | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://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+structure | en_HK |
dc.identifier.email | Wong, N:nwong@eee.hku.hk | en_HK |
dc.identifier.email | Ng, TS:tsng@eee.hku.hk | en_HK |
dc.identifier.authority | Wong, N=rp00190 | en_HK |
dc.identifier.authority | Ng, TS=rp00159 | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.doi | 10.1109/82.899648 | en_HK |
dc.identifier.scopus | eid_2-s2.0-0034459135 | en_HK |
dc.identifier.hkuros | 58650 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0034459135&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 47 | en_HK |
dc.identifier.issue | 12 | en_HK |
dc.identifier.spage | 1533 | en_HK |
dc.identifier.epage | 1536 | en_HK |
dc.identifier.isi | WOS:000166849700021 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Wong, N=35235551600 | en_HK |
dc.identifier.scopusauthorid | Ng, TS=7402229975 | en_HK |
dc.identifier.issnl | 1057-7130 | - |