Forward and Inverse Models of Electromagnetic Scattering from Layered Media with Rough Interfaces.
dc.contributor.author | Tabatabaeenejad, Seyed Alireza | en_US |
dc.date.accessioned | 2010-01-07T16:31:36Z | |
dc.date.available | NO_RESTRICTION | en_US |
dc.date.available | 2010-01-07T16:31:36Z | |
dc.date.issued | 2008 | en_US |
dc.date.submitted | en_US | |
dc.identifier.uri | https://hdl.handle.net/2027.42/64752 | |
dc.description.abstract | This work addresses the problem of electromagnetic scattering from layered dielectric structures with rough boundaries and the associated inverse problem of retrieving the subsurface parameters of the structure using the scattered field. To this end, a forward scattering model based on the Small Perturbation Method (SPM) is developed to calculate the first-order spectral-domain bistatic scattering coefficients of a two-layer rough surface structure. SPM requires the boundaries to be slightly rough compared to the wavelength, but to understand the range of applicability of this method in scattering from two-layer rough surfaces, its region of validity is investigated by comparing its output with that of a first principle solver that does not impose roughness restrictions. The Method of Moments (MoM) is used for this purpose. Finally, for retrieval of the model parameters of the layered structure using scattered field, an inversion scheme based on the Simulated Annealing method is investigated and a strategy is proposed to address convergence to local minimum. | en_US |
dc.format.extent | 2003671 bytes | |
dc.format.extent | 1373 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | en_US |
dc.subject | Electromagnetic Scattering | en_US |
dc.subject | Layered Rough Surface | en_US |
dc.subject | Subsurface Sensing | en_US |
dc.title | Forward and Inverse Models of Electromagnetic Scattering from Layered Media with Rough Interfaces. | en_US |
dc.type | Thesis | en_US |
dc.description.thesisdegreename | PhD | en_US |
dc.description.thesisdegreediscipline | Electrical Engineering | en_US |
dc.description.thesisdegreegrantor | University of Michigan, Horace H. Rackham School of Graduate Studies | en_US |
dc.contributor.committeemember | Moghaddam, Mahta | en_US |
dc.contributor.committeemember | Grbic, Anthony | en_US |
dc.contributor.committeemember | Miller, Peter D. | en_US |
dc.contributor.committeemember | Ulaby, Fawwaz T. | en_US |
dc.subject.hlbsecondlevel | Electrical Engineering | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/64752/1/alirezat_1.pdf | |
dc.owningcollname | Dissertations and Theses (Ph.D. and Master's) |
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