Nonlinear transient chirp signal modeling of the aortic and pulmonary components of the second heart sound

DC FieldValueLanguage
dc.contributor.authorSun, Jingping-
dc.contributor.authorDurand, Louis-Gilles-
dc.contributor.authorPibarot, Philippe-
dc.date.accessioned2016-06-14T17:25:47Z-
dc.date.available10000-01-01-
dc.date.issued2000-10-01-
dc.identifier.issn0018-9294fr_CA
dc.identifier.urihttp://hdl.handle.net/20.500.11794/5488-
dc.description.abstractDescribes a new approach based on the time-frequency representation of transient nonlinear chirp signals for modeling the aortic (A2) and the pulmonary (P2) components of the second heart sound (S2). It is demonstrated that each component is a narrow-band signal with decreasing instantaneous frequency defined by its instantaneous amplitude and its instantaneous phase. Each component Is also a polynomial phase signal, the instantaneous phase of which can be accurately represented by a polynomial having an order of thirty. A dechirping approach is used to obtain the instantaneous amplitude of each component while reducing the effect of the background noise. The analysis-synthesis procedure is applied to 32 isolated A2 and 32 isolated P2 components recorded in four pigs with pulmonary hypertension. The mean /spl plusmn/ standard deviation of the normalized root-mean-squared error (NRMSE) and the correlation coefficient (/spl rho/) between the original and the synthesized signal components were: NRMSE=2.1/spl plusmn/0.3% and /spl rho/=0.97/spl plusmn/0.02 for A2 and NRMSE=2.52/spl plusmn/0.5% and /spl rho/=0.96/spl plusmn/0.02 for P2. These results confirm that each component can be modeled as mono-component nonlinear chirp signals of short duration with energy distributions concentrated along its decreasing instantaneous frequency.fr_CA
dc.languageengfr_CA
dc.publisherInstitute of Electrical and Electronics Engineersfr_CA
dc.subjectAnalysis-synthesisfr_CA
dc.subjectdigital phonocardiographyfr_CA
dc.subjectheart sounds modelingfr_CA
dc.subjectpolynomial phase modelingfr_CA
dc.subjecttime-frequency representationfr_CA
dc.subjecttransient chirp signalfr_CA
dc.titleNonlinear transient chirp signal modeling of the aortic and pulmonary components of the second heart soundfr_CA
dc.typeCOAR1_1::Texte::Périodique::Revue::Contribution à un journal::Article::Article de recherche-
dcterms.bibliographicCitationIEEE Transactions on Biomedical Engineering, Vol. 47 (10), 1328–1335 (2000)fr_CA
dc.audienceProfesseurs (Enseignement supérieur)fr_CA
dc.audienceÉtudiantsfr_CA
dc.audienceDoctorantsfr_CA
dc.audienceCardiologuesfr_CA
dc.audienceMédecinsfr_CA
dc.identifier.doi10.1109/10.871405fr_CA
dc.identifier.pubmed11059167fr_CA
dc.subject.rvmCœur -- Bruits -- Modèles mathématiquesfr_CA
dc.subject.rvmTraitement du signalfr_CA
dc.subject.rvmPhonocardiographiefr_CA
dc.subject.rvmAortefr_CA
dc.subject.rvmPoumonsfr_CA
rioxxterms.versionVersion of Recordfr_CA
rioxxterms.version_of_recordhttps://doi.org/10.1109/10.871405fr_CA
bul.rights.periodeEmbargoInfinifr_CA
Collection:Articles publiés dans des revues avec comité de lecture

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