An Exponential Filtering Based Inversion Method for Microwave Imaging

dc.contributor.authorMagdum, Amit
dc.contributor.authorErramshetty, Mallikarjun
dc.contributor.authorJagannath, Ravi Prasad K.
dc.coverage.issue3cs
dc.coverage.volume30cs
dc.date.accessioned2021-11-08T10:24:41Z
dc.date.available2021-11-08T10:24:41Z
dc.date.issued2021-09cs
dc.description.abstractIn this paper, a new methodology based on the exponential filtering of singular values is adopted to solve the linear ill-posed problem of microwave imaging. This technique filters out the insignificant singular values and works as an efficient low pass filter to eliminate high-frequency noise from the estimated solution. Standard Tikhonov regularization has also proven to be a special case of this method. To show the effectiveness of this approach, various numerical examples of synthetic data and experimental data of Fresnel's Institute are considered for the study. The reconstruction performance of this algorithm is quantified using the mean square error (MSE) and Pearson's correlation coefficient (PCC). Further, the effect of noise on these metrics is presented. The results are compared with the standard Tikhonov regularization method, and it is observed that the proposed reconstruction algorithm provides accurate results compared to the standard Tikhonov regularization method.en
dc.formattextcs
dc.format.extent496-503cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2021 vol. 30, č. 3, s. 496-503. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2021.0496en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/201835
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2021/21_03_0496_0503.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectExponential filteringen
dc.subjectill-posed problemen
dc.subjectmicrowave imagingen
dc.subjectsingular valuesen
dc.subjectTikhonov regularizationen
dc.titleAn Exponential Filtering Based Inversion Method for Microwave Imagingen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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