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dc.contributor.authorNedjah, O.
dc.contributor.authorHussein, A.M.
dc.contributor.authorKrishnan, S.
dc.contributor.authorRahimeefar, K.
dc.contributor.authorSotudeh, R.
dc.date.accessioned2013-01-10T15:29:16Z
dc.date.available2013-01-10T15:29:16Z
dc.date.issued2008
dc.identifier.citationNedjah , O , Hussein , A M , Krishnan , S , Rahimeefar , K & Sotudeh , R 2008 , A Divide-and-Conquer approach for denoising and modeling the CN Tower lightning current derivative signal . in Canadian Conference on Electrical and Computer Engineering (CCECE 2008) . IEEE , pp. 001373-001378 . https://doi.org/10.1109/CCECE.2008.4564766
dc.identifier.isbn978-1-4244-1642-4
dc.identifier.otherPURE: 114887
dc.identifier.otherPURE UUID: 4e78cbec-c047-47f5-81b7-985df05e25c7
dc.identifier.otherdspace: 2299/2344
dc.identifier.otherScopus: 51849165282
dc.identifier.urihttp://hdl.handle.net/2299/9549
dc.description“This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder." “Copyright 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.description.abstractThe CN Tower is a transmission hub and an instrumented tower for the measurement of the lightning return stroke current derivative. The recorded data are corrupted by different kinds of noise, and need to be denoised for accurate determination of the lightning return-stroke current waveform parameters. A new Divide-and-Conquer denoising approach that imitates the Basis Pursuit method and the Newton-Raphson technique has been developed. This paper describes the new process of denoising the recorded signals. First, the current derivative is preprocessed to eliminate the noise outside the lightning return-stroke active region and reduce the presence of the high frequencies inside the active region. Then, by marching on both the graphs of the current derivative and its integral, the noise due to reflections is localized and removed. By this process the SNR improved by 35 dB and the lightning current and current derivative parameters are calculated automatically with a high precision. Furthermore, using the calculated parameters the data is curve fitted to Heidler function, which results in a model for the measured lightning current derivative with an infinite SNRen
dc.language.isoeng
dc.publisherIEEE
dc.relation.ispartofCanadian Conference on Electrical and Computer Engineering (CCECE 2008)
dc.titleA Divide-and-Conquer approach for denoising and modeling the CN Tower lightning current derivative signalen
dc.contributor.institutionSchool of Engineering and Technology
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=51849165282&partnerID=8YFLogxK
rioxxterms.versionofrecordhttps://doi.org/10.1109/CCECE.2008.4564766
rioxxterms.typeOther
herts.preservation.rarelyaccessedtrue


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