A microwave imaging approach based on the integration of a subspace-base optimization method (SOM) and a multi-focusing procedure is proposed. The scattering equations are expressed within the contrast source formulation of the electromagnetic inverse problem and then solved by a nested procedure which includes an outer multi-resolution loop (dealing with the identification of the regions of interest), a spectrum analysis step (devoted to the reconstruction of the `deterministic' components of the contrast sources) and an inner optimization loop (aimed at the retrieval of their `ambiguous' parts). A numerical analysis is presented to preliminarily assess the features of the proposed approach.

Enhancing Subspace-Based Inversions through an Efficient Multi-Scaling Scheme

Oliveri, Giacomo;Massa, Andrea
2011-01-01

Abstract

A microwave imaging approach based on the integration of a subspace-base optimization method (SOM) and a multi-focusing procedure is proposed. The scattering equations are expressed within the contrast source formulation of the electromagnetic inverse problem and then solved by a nested procedure which includes an outer multi-resolution loop (dealing with the identification of the regions of interest), a spectrum analysis step (devoted to the reconstruction of the `deterministic' components of the contrast sources) and an inner optimization loop (aimed at the retrieval of their `ambiguous' parts). A numerical analysis is presented to preliminarily assess the features of the proposed approach.
2011
XXX URSI General Assembly and Scientific Symposium of International Union of Radio Science
Piscataway, NJ
IEEE
9781424451173
Oliveri, Giacomo; Y., Zhong; X., Chen; Massa, Andrea
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/89787
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