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Article: Multicriteria design of oversampled uniform DFT filter banks

TitleMulticriteria design of oversampled uniform DFT filter banks
Authors
KeywordsAliasing effect
Amplitude distortion
Filter bank
Nonlinear programming
Pareto optimum
Subband adaptive filter
Issue Date2004
PublisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=97
Citation
Ieee Signal Processing Letters, 2004, v. 11 n. 6, p. 541-544 How to Cite?
AbstractSubband adaptive filters have been proposed to avoid the drawbacks of slow convergence and high computational complexity associated with time domain adaptive filters. However, subband processing causes signal degradations due to aliasing effects and amplitude distortions. This problem is unavoidable due to further filtering operations in subbands. In this letter, the problems of aliasing effect and amplitude distortion are studied. Prototype filters which are optimized with respect to those properties are designed and their performances are compared. Moreover, the effect of the number of subbands, the oversampling factors and the length of the prototype filter are also studied. Using the multicriteria formulation, all Pareto optimums are sought via the nonlinear programming technique. We find that the prototype filter designed via the Kaiser window provides the best overall performance among the methods we studied. Also, there is a critical oversampling factor beyond which the improvement of performance is diminishing. Finally, if the length of the prototype filter increases with the number of subbands, an increase in the number of subbands will not deteriorate the performance.
Persistent Identifierhttp://hdl.handle.net/10722/42986
ISSN
2015 Impact Factor: 1.661
2015 SCImago Journal Rankings: 1.072
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYiu, KFCen_HK
dc.contributor.authorGrbić, Nen_HK
dc.contributor.authorNordholm, Sen_HK
dc.contributor.authorTeo, KLen_HK
dc.date.accessioned2007-03-23T04:36:09Z-
dc.date.available2007-03-23T04:36:09Z-
dc.date.issued2004en_HK
dc.identifier.citationIeee Signal Processing Letters, 2004, v. 11 n. 6, p. 541-544en_HK
dc.identifier.issn1070-9908en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42986-
dc.description.abstractSubband adaptive filters have been proposed to avoid the drawbacks of slow convergence and high computational complexity associated with time domain adaptive filters. However, subband processing causes signal degradations due to aliasing effects and amplitude distortions. This problem is unavoidable due to further filtering operations in subbands. In this letter, the problems of aliasing effect and amplitude distortion are studied. Prototype filters which are optimized with respect to those properties are designed and their performances are compared. Moreover, the effect of the number of subbands, the oversampling factors and the length of the prototype filter are also studied. Using the multicriteria formulation, all Pareto optimums are sought via the nonlinear programming technique. We find that the prototype filter designed via the Kaiser window provides the best overall performance among the methods we studied. Also, there is a critical oversampling factor beyond which the improvement of performance is diminishing. Finally, if the length of the prototype filter increases with the number of subbands, an increase in the number of subbands will not deteriorate the performance.en_HK
dc.format.extent208111 bytes-
dc.format.extent25088 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=97en_HK
dc.relation.ispartofIEEE Signal Processing Lettersen_HK
dc.rights©2004 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.subjectAliasing effecten_HK
dc.subjectAmplitude distortionen_HK
dc.subjectFilter banken_HK
dc.subjectNonlinear programmingen_HK
dc.subjectPareto optimumen_HK
dc.subjectSubband adaptive filteren_HK
dc.titleMulticriteria design of oversampled uniform DFT filter banksen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1070-9908&volume=11&issue=6&spage=541&epage=544&date=2004&atitle=Multicriteria+design+of+oversampled+uniform+DFT+filter+banksen_HK
dc.identifier.emailYiu, KFC:cedric@hkucc.hku.hken_HK
dc.identifier.authorityYiu, KFC=rp00206en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/LSP.2004.826676en_HK
dc.identifier.scopuseid_2-s2.0-2942585015en_HK
dc.identifier.hkuros99324-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-2942585015&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume11en_HK
dc.identifier.issue6en_HK
dc.identifier.spage541en_HK
dc.identifier.epage544en_HK
dc.identifier.isiWOS:000221578500005-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYiu, KFC=24802813000en_HK
dc.identifier.scopusauthoridGrbić, N=6603555696en_HK
dc.identifier.scopusauthoridNordholm, S=7005690573en_HK
dc.identifier.scopusauthoridTeo, KL=35569785000en_HK

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