eprintid: 367 rev_number: 6 eprint_status: archive userid: 5 dir: disk0/00/00/03/67 datestamp: 2011-08-04 lastmod: 2013-07-03 08:38:07 status_changed: 2013-07-03 08:38:07 type: techreport metadata_visibility: show item_issues_count: 0 creators_name: Donelli, Massimo creators_name: Franceschini, Davide creators_name: Benedetti, Manuel creators_name: Massa, Andrea creators_name: Gragnani, G. L. title: Inversion of Large-Scale Electromagnetic Data Through the Iterative Multizooming Reconstruction of Nonmeasurable Equivalent Current Densities ispublished: pub subjects: TU full_text_status: public abstract: In the framework of the inversion of electromagnetic data, several methodologies consider the introduction of an equivalent current density defined into the dielectric domain to be reconstructed. However, one of the main drawbacks of these approaches is their “difficulty” to reconstruct the so-called “nonradiating” (or “nonmeasurable” when the electromagnetic data are measured only in a limited domain or positions outside the investigation domain) components of the equivalent current density. Hence the obtained solution may be too inaccurate and, in many realistic cases, it suffers from a strong low-pass effect. date: 2011-01 date_type: published institution: University of Trento department: informaticat refereed: FALSE referencetext: [1] T. M. Habashy, M. L. Oristaglio, and A. T. de Hoop, “Simultaneous nonlinear reconstruction of two-dimensional permittivity and conductivity,” Radio Sci., vol. 29, pp. 1101-1118, 1994. [2] G. L. Gragnani and S. Caorsi, “Inverse scattering method for dielectric objects based on the reconstruction of nonmeasurable equivalent current density,” Radio Sci., vol. 34, pp. 1-8, 1999. [3] W. C. Chew, Y. M. Wang, G. P. Otto, D. Lesselier, and J. Ch. Bolomey, “On the inverse source method of solving inverse scattering problems,” Inverse Probl., vol. 10, pp. 547-553, 1994. [4] M Donelli and A. Massa, “A computational approach based on a particle swarm optimizer for microwave imaging of two-dimensional dielectric scatterers,” IEEE Trans. Microwave Theory Techn., vol. 53, pp. 1761-1776, 2005. citation: Donelli, Massimo and Franceschini, Davide and Benedetti, Manuel and Massa, Andrea and Gragnani, G. L. (2011) Inversion of Large-Scale Electromagnetic Data Through the Iterative Multizooming Reconstruction of Nonmeasurable Equivalent Current Densities. [Technical Report] document_url: http://www.eledia.org/students-reports/367/1/DISI-11-264.C101.pdf