eprintid: 372
rev_number: 6
eprint_status: archive
userid: 5
dir: disk0/00/00/03/72
datestamp: 2011-07-26
lastmod: 2013-07-03 08:43:44
status_changed: 2013-07-03 08:43:44
type: techreport
metadata_visibility: show
item_issues_count: 0
creators_name: Franceschini, Davide
creators_name: Donelli, Massimo
creators_name: Rosani, Andrea
creators_name: Massa, Andrea
title: A Reconstruction Strategy Based on the Dort Method for Imaging Finite Dimension Scatterers
ispublished: pub
subjects: TU
full_text_status: public
keywords: Microwave Imaging, Electromagnetic Inverse Scattering, Time-Reversal, DORT
abstract: This paper presents a two stage strategy for the electromagnetic imaging of unknown lossless profiles. The first step is aimed at providing the localizations and an estimate of the number of the regions of interest (RoIs) where the scatterers are supposed to be located through the application of the DORT method enhanced with a suitable processing of the information associated with the eigenvalues of the time reversal operator. Towards this aim, a suitable procedure is developed and applied in an extended and unsupervised fashion for localizing the finite dimension scatterers under test. Successively, the second stage is devoted to reconstruct the unknown scatterer distributions by means of an iterative multi resolution non linear inversion performed only in the RoIs determined during the previous step.
date: 2011-01
date_type: published
institution: University of Trento
department: informaticat
refereed: FALSE
referencetext: 1. D. Colton and R. Krees, Inverse acoustic and electromagnetic scattering theory. Berlin, Germany: Pringer-Verlag, 1992. 2. A. Litman, D. Lesselier, and F. Santosa, "Reconstruction of two-dimensional binary obstacle by controlled evolution of a level set ," Inverse Problems, vol. 14, pp. 685-706, Jun. 1998. 3. O. M. Bucci, A. Capozzoli, and G. D'Elia, "A novel approach to scatterer localization problem," IEEE Trans. Antennas Propagat., vol. 51, pp. 2079-2090, Aug. 2003. 4. H. Tortel, G. Micolau, and M. Saillard, "Decomposition of the time reversal operator for electromagnetic scattering," J. Electromagn. Waves Appl., vol. 13, pp. 687-719, Mar. 1999. 5. M. Donelli and A. Massa, "Computational approach based on a particle swarm optimizer for microwave imaging of two-dimensional dielectric scatterers," IEEE Trans. Microwave Theory Tech., vol. 53, pp. 1761-1776, May 2005. 6. M. Donelli, G. Franceschini, A. Martini, and A. Massa, “An integrated multi scaling strategy based on a particle swarm algorithm for inverse scattering problems,” IEEE Trans. Geosci. Remote Sens., vol. 44, pp. 298-312, Feb. 2006.
citation:   Franceschini, Davide and Donelli, Massimo and Rosani, Andrea and Massa, Andrea  (2011) A Reconstruction Strategy Based on the Dort Method for Imaging Finite Dimension Scatterers.  [Technical Report]     
document_url: http://www.eledia.org/students-reports/372/1/DISI-11-232.C133.pdf