An Improved Variable Structure Adaptive Filter Design and Analysis for Acoustic Echo Cancellation

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dc.contributor.authorKar, Asutosh
dc.contributor.authorChandra, Mahesh
dc.coverage.issue1cs
dc.coverage.volume24cs
dc.date.accessioned2015-05-21T12:36:01Z
dc.date.available2015-05-21T12:36:01Z
dc.date.issued2015-04cs
dc.description.abstractIn this research an advance variable structure adaptive Multiple Sub-Filters (MSF) based algorithm for single channel Acoustic Echo Cancellation (AEC) is proposed and analyzed. This work suggests a new and improved direction to find the optimum tap-length of adaptive filter employed for AEC. The structure adaptation, supported by a tap-length based weight update approach helps the designed echo canceller to maintain a trade-off between the Mean Square Error (MSE) and time taken to attain the steady state MSE. The work done in this paper focuses on replacing the fixed length sub-filters in existing MSF based AEC algorithms which brings refinements in terms of convergence, steady state error and tracking over the single long filter, different error and common error algorithms. A dynamic structure selective coefficient update approach to reduce the structural and computational cost of adaptive design is discussed in context with the proposed algorithm. Simulated results reveal a comparative performance analysis over proposed variable structure multiple sub-filters designs and existing fixed tap-length sub-filters based acoustic echo cancellers.en
dc.formattextcs
dc.format.extent252-261cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2015 vol. 24, č. 1, s. 252-261. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2015.0252en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/38759
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2015/15_01_0252_0261.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectAdaptive filteren
dc.subjectacoustic echo cancellationen
dc.subjectvariable structure designen
dc.subjectmultiple sub-filtersen
dc.subjectleast mean squareen
dc.subjectmean square erroren
dc.subjectconvergence.en
dc.titleAn Improved Variable Structure Adaptive Filter Design and Analysis for Acoustic Echo Cancellationen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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