Sparse contrast-source inversion using linear-shrinkage-enhanced inexact Newton method

Handle URI:
http://hdl.handle.net/10754/564943
Title:
Sparse contrast-source inversion using linear-shrinkage-enhanced inexact Newton method
Authors:
Desmal, Abdulla ( 0000-0003-0861-8908 ) ; Bagci, Hakan ( 0000-0003-3867-5786 )
Abstract:
A contrast-source inversion scheme is proposed for microwave imaging of domains with sparse content. The scheme uses inexact Newton and linear shrinkage methods to account for the nonlinearity and ill-posedness of the electromagnetic inverse scattering problem, respectively. Thresholded shrinkage iterations are accelerated using a preconditioning technique. Additionally, during Newton iterations, the weight of the penalty term is reduced consistently with the quadratic convergence of the Newton method to increase accuracy and efficiency. Numerical results demonstrate the applicability of the proposed method.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Computational Electromagnetics Laboratory
Publisher:
Institute of Electrical & Electronics Engineers (IEEE)
Journal:
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)
Conference/Event name:
2014 IEEE Antennas and Propagation Society International Symposium, APSURSI 2014
Issue Date:
Jul-2014
DOI:
10.1109/APS.2014.6904763
Type:
Conference Paper
ISSN:
15223965
ISBN:
9781479935406
Appears in Collections:
Conference Papers; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorDesmal, Abdullaen
dc.contributor.authorBagci, Hakanen
dc.date.accessioned2015-08-04T07:25:52Zen
dc.date.available2015-08-04T07:25:52Zen
dc.date.issued2014-07en
dc.identifier.isbn9781479935406en
dc.identifier.issn15223965en
dc.identifier.doi10.1109/APS.2014.6904763en
dc.identifier.urihttp://hdl.handle.net/10754/564943en
dc.description.abstractA contrast-source inversion scheme is proposed for microwave imaging of domains with sparse content. The scheme uses inexact Newton and linear shrinkage methods to account for the nonlinearity and ill-posedness of the electromagnetic inverse scattering problem, respectively. Thresholded shrinkage iterations are accelerated using a preconditioning technique. Additionally, during Newton iterations, the weight of the penalty term is reduced consistently with the quadratic convergence of the Newton method to increase accuracy and efficiency. Numerical results demonstrate the applicability of the proposed method.en
dc.publisherInstitute of Electrical & Electronics Engineers (IEEE)en
dc.titleSparse contrast-source inversion using linear-shrinkage-enhanced inexact Newton methoden
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputational Electromagnetics Laboratoryen
dc.identifier.journal2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)en
dc.conference.date6 July 2014 through 11 July 2014en
dc.conference.name2014 IEEE Antennas and Propagation Society International Symposium, APSURSI 2014en
kaust.authorBagci, Hakanen
kaust.authorDesmal, Abdullaen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.