A Variable Step-size CLMS Algorithm and Its Analysis

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dc.contributor.authorFan, Xinfeng
dc.contributor.authorTan, Zhiliang
dc.contributor.authorSong, Peijiao
dc.contributor.authorChen, Liwei
dc.coverage.issue1cs
dc.coverage.volume29cs
dc.date.accessioned2020-05-04T09:39:03Z
dc.date.available2020-05-04T09:39:03Z
dc.date.issued2020-04cs
dc.description.abstractIn this paper, a hyperbolic tangent variable step-size convex combination of the least mean square (HTVSCLMS) algorithm is proposed and analyzed. This work avoids the compromise between the convergence speed and the steady-state error for two filters in convex combination of the least mean square (CLMS) algorithm. In the proposed algorithm, the big step-size filter is replaced by a filter whose iteration step-size is a modified function based on hyperbolic tangent function. Thus it constructs hyperbolic tangent nonlinear relationship between step-size and error. At the same time, the small step-size filter remains unchanged but fixed. So, it conquers the slow convergence speed and the weak anti-interference ability of fixed step-size CLMS. Simulation results show that HTVSCLMS algorithm, compared with CLMS algorithm and variable step-size CLMS (VSCLMS) algorithm, not only has superior capability of tracking in the presence of noise and in a stable and even non-stable environment, but also can maintain a better convergence.en
dc.formattextcs
dc.format.extent182-188cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2020 vol. 29, č. 1, s. 182-188. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2020.0182en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/186948
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2019/20_01_0182_0188.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectLeast mean square (LMS) filtersen
dc.subjectconvex combinationen
dc.subjectvariable step-sizeen
dc.subjecthyperbolic tangent functionen
dc.titleA Variable Step-size CLMS Algorithm and Its Analysisen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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