Show simple item record

dc.contributor.authorDesmal, Abdulla
dc.contributor.authorBagci, Hakan
dc.date.accessioned2017-01-02T09:28:34Z
dc.date.available2017-01-02T09:28:34Z
dc.date.issued2016-11-02
dc.identifier.citationDesmal A, Bagci H (2016) Three-dimensional sparse electromagnetic imaging accelerated by projected steepest descent. 2016 IEEE International Symposium on Antennas and Propagation (APSURSI). Available: http://dx.doi.org/10.1109/APS.2016.7696222.
dc.identifier.doi10.1109/APS.2016.7696222
dc.identifier.urihttp://hdl.handle.net/10754/622487
dc.description.abstractAn efficient and accurate scheme for solving the nonlinear electromagnetic inverse scattering problem on three-dimensional sparse investigation domains is proposed. The minimization problem is constructed in such a way that the data misfit between measurements and scattered fields (which are expressed as a nonlinear function of the contrast) is constrained by the contrast's first norm. The resulting minimization problem is solved using nonlinear Landweber iterations accelerated using a steepest descent algorithm. A projection operator is applied at every iteration to enforce the sparsity constraint by thresholding the result of that iteration. Steepest descent algorithm ensures accelerated and convergent solution by utilizing larger iteration steps selected based on a necessary B-condition.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.urlhttp://ieeexplore.ieee.org/document/7696222/
dc.subjectsparse reconstruction
dc.subjectaccelerated steepest descent
dc.subjectelectromagnetic imaging
dc.subjectinverse scattering
dc.titleThree-dimensional sparse electromagnetic imaging accelerated by projected steepest descent
dc.typeConference Paper
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journal2016 IEEE International Symposium on Antennas and Propagation (APSURSI)
dc.conference.date2016-06-26 to 2016-07-01
dc.conference.name2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016
dc.conference.locationFajardo, PRI
kaust.personDesmal, Abdulla
kaust.personBagci, Hakan
dc.date.published-online2016-11-02
dc.date.published-print2016-06


This item appears in the following Collection(s)

Show simple item record