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dc.contributor.authorDesmal, Abdulla
dc.contributor.authorBagci, Hakan
dc.date.accessioned2015-08-03T12:04:30Z
dc.date.available2015-08-03T12:04:30Z
dc.date.issued2014-07
dc.identifier.citationDesmal, A., & Bagci, H. (2014). Shrinkage-Thresholding Enhanced Born Iterative Method for Solving 2D Inverse Electromagnetic Scattering Problem. IEEE Transactions on Antennas and Propagation, 62(7), 3878–3884. doi:10.1109/tap.2014.2321144
dc.identifier.issn0018926X
dc.identifier.doi10.1109/TAP.2014.2321144
dc.identifier.urihttp://hdl.handle.net/10754/563618
dc.description.abstractA numerical framework that incorporates recently developed iterative shrinkage thresholding (IST) algorithms within the Born iterative method (BIM) is proposed for solving the two-dimensional inverse electromagnetic scattering problem. IST algorithms minimize a cost function weighted between measurement-data misfit and a zeroth/first-norm penalty term and therefore promote "sharpness" in the solution. Consequently, when applied to domains with sharp variations, discontinuities, or sparse content, the proposed framework is more efficient and accurate than the "classical" BIM that minimizes a cost function with a second-norm penalty term. Indeed, numerical results demonstrate the superiority of the IST-BIM over the classical BIM when they are applied to sparse domains: Permittivity and conductivity profiles recovered using the IST-BIM are sharper and more accurate and converge faster. © 1963-2012 IEEE.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectBorn iterative method
dc.subjectiterative shrinkage thresholding algorithms
dc.subjectmicrowave imaging
dc.subjectregularization
dc.titleShrinkage-thresholding enhanced born iterative method for solving 2D inverse electromagnetic scattering problem
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentCenter for Uncertainty Quantification in Computational Science and Engineering (SRI-UQ)
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentComputational Electromagnetics Laboratory
dc.identifier.journalIEEE Transactions on Antennas and Propagation
kaust.personBagci, Hakan
kaust.personDesmal, Abdulla


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