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Microwave imaging by three‐dimensional Born linearization of electromagnetic scattering
Author(s) -
Caorsi S.,
Gragnani G. L.,
Pastorino M.
Publication year - 1990
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs025i006p01221
Subject(s) - microwave imaging , linearization , inverse scattering problem , scattering , born approximation , microwave , inverse problem , permittivity , moment (physics) , physics , electromagnetic radiation , method of moments (probability theory) , mathematical analysis , optics , dielectric , mathematics , nonlinear system , classical mechanics , quantum mechanics , statistics , estimator
An approach to microwave imaging is proposed that uses a three‐dimensional vectorial form of the Born approximation to linearize the equation of electromagnetic scattering. The inverse scattering problem is numerically solved for three‐dimensional geometries by means of the moment method. A pseudoinversion algorithm is adopted to overcome ill conditioning. Results show that the method is well suited for qualitative imaging purposes, while its capability for exactly reconstructing the complex dielectric permittivity is affected by the limitations inherent in the Born approximation and in ill conditioning.