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Article: Multicriteria design of oversampled uniform DFT filter banks
Title | Multicriteria design of oversampled uniform DFT filter banks |
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Authors | |
Keywords | Aliasing effect Amplitude distortion Filter bank Nonlinear programming Pareto optimum Subband adaptive filter |
Issue Date | 2004 |
Publisher | I 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? |
Abstract | Subband 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 Identifier | http://hdl.handle.net/10722/42986 |
ISSN | 2023 Impact Factor: 3.2 2023 SCImago Journal Rankings: 1.271 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yiu, KFC | en_HK |
dc.contributor.author | Grbić, N | en_HK |
dc.contributor.author | Nordholm, S | en_HK |
dc.contributor.author | Teo, KL | en_HK |
dc.date.accessioned | 2007-03-23T04:36:09Z | - |
dc.date.available | 2007-03-23T04:36:09Z | - |
dc.date.issued | 2004 | en_HK |
dc.identifier.citation | Ieee Signal Processing Letters, 2004, v. 11 n. 6, p. 541-544 | en_HK |
dc.identifier.issn | 1070-9908 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/42986 | - |
dc.description.abstract | Subband 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.extent | 208111 bytes | - |
dc.format.extent | 25088 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.format.mimetype | application/msword | - |
dc.language | eng | en_HK |
dc.publisher | I E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=97 | en_HK |
dc.relation.ispartof | IEEE Signal Processing Letters | en_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. | - |
dc.subject | Aliasing effect | en_HK |
dc.subject | Amplitude distortion | en_HK |
dc.subject | Filter bank | en_HK |
dc.subject | Nonlinear programming | en_HK |
dc.subject | Pareto optimum | en_HK |
dc.subject | Subband adaptive filter | en_HK |
dc.title | Multicriteria design of oversampled uniform DFT filter banks | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://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+banks | en_HK |
dc.identifier.email | Yiu, KFC:cedric@hkucc.hku.hk | en_HK |
dc.identifier.authority | Yiu, KFC=rp00206 | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.doi | 10.1109/LSP.2004.826676 | en_HK |
dc.identifier.scopus | eid_2-s2.0-2942585015 | en_HK |
dc.identifier.hkuros | 99324 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-2942585015&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 11 | en_HK |
dc.identifier.issue | 6 | en_HK |
dc.identifier.spage | 541 | en_HK |
dc.identifier.epage | 544 | en_HK |
dc.identifier.isi | WOS:000221578500005 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Yiu, KFC=24802813000 | en_HK |
dc.identifier.scopusauthorid | Grbić, N=6603555696 | en_HK |
dc.identifier.scopusauthorid | Nordholm, S=7005690573 | en_HK |
dc.identifier.scopusauthorid | Teo, KL=35569785000 | en_HK |
dc.identifier.issnl | 1070-9908 | - |