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dc.contributor.authorJevremovic, Ivana
dc.contributor.authorErbe, Andreas
dc.date.accessioned2019-11-27T09:11:18Z
dc.date.available2019-11-27T09:11:18Z
dc.date.created2019-11-06T14:24:30Z
dc.date.issued2019
dc.identifier.citationPhysical Chemistry, Chemical Physics - PCCP. 2019, 21 24361-24372.nb_NO
dc.identifier.issn1463-9076
dc.identifier.urihttp://hdl.handle.net/11250/2630684
dc.description.abstractSeveral different time–frequency transforms from signal processing were used to analyze electrochemical noise data to determine frequency components contained within the noise record and their time evolution. Bilinear time–frequency representations (TFR) based on the Wigner–Ville distribution (WVD) were compared with a special focus on the reassigned smoothed pseudo WVD (RSPWVD). Spectra obtained with WVD were compared with traditional linear time–frequency representations, such as short time Fourier transform and wavelet transform. Comparison to other TFRs showed that the RSPWVD suppressed artifacts, provided better resolution of the time–frequency analysis in both time and frequency domains, and improved the overall readability of a representation. The obtained spectra from RSPWVD were consistent with the results from DWT, but permitted a more comprehensive analysis of transients. Consequently, RSPWVD is suitable for electrochemical noise analysis. In the presence of Cl−, RSPWVD showed that the passivity of Al was compromised, as evidenced by the presence of various current transients in the frequency range from 10−2 to 1 Hz.nb_NO
dc.language.isoengnb_NO
dc.publisherRoyal Society of Chemistrynb_NO
dc.titleThe Reassigned Pseudo Wigner-Ville Transform in Electrochemical Noise Analysisnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionsubmittedVersionnb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber24361-24372nb_NO
dc.source.volume21nb_NO
dc.source.journalPhysical Chemistry, Chemical Physics - PCCPnb_NO
dc.identifier.doi10.1039/C9CP04769G
dc.identifier.cristin1744617
dc.description.localcode© 2019. This is the authors' accepted and refereed manuscript to the article. The final authenticated version is available online at: http://dx.doi.org/10.1039/C9CP04769Gnb_NO
cristin.unitcode194,66,35,0
cristin.unitnameInstitutt for materialteknologi
cristin.ispublishedtrue
cristin.fulltextpreprint
cristin.fulltextpostprint
cristin.qualitycode2


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