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. UNSPECIFIED.
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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.
| Item Type: | Departmental Technical Report |
|---|---|
| Department or Research center: | Information Engineering and Computer Science |
| Subjects: | Q Science > QC Physics (General) > QC661 Electromagnetic Theory Q Science > QC Physics (General) > QC760 Electromagnetism |
| Uncontrolled Keywords: | Microwave Imaging, Electromagnetic Inverse Scattering, Time‐Reversal, DORT |
| Report Number: | DISI-11-232 |
| Repository staff approval on: | 26 Jul 2011 |
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