Title :
New results on electromagnetic imaging based on the inversion of synthetic and measured scattered-field data
Author :
Azaro, Renzo ; Bozza, Giovanni ; Estatico, Claudio ; Massa, Andrea ; Pastorino, Matteo ; Pregnolato, Denis ; Randazzo, Andrea
Author_Institution :
Electromagn. Compatibility (EMC) S.r.l, Genova, Italy
Abstract :
A new approach for the inversion of synthetic and measured scattered data is proposed in this paper. The approach is based on an iterative technique in which the nonlinear equations of the inverse-scattering problem are solved within the pth-order Born approximation. A regularization scheme based on an inexact-Newton method is applied. Several numerical simulations and experimental results are reported. Multiple separated dielectric cylinders are localized and reconstructed in a noisy environment.
Keywords :
Newton method; approximation theory; electromagnetic wave scattering; imaging; inverse problems; nonlinear equations; Born approximation; dielectric cylinders; electromagnetic imaging; electromagnetic scattering; inexact-Newton method; inverse-scattering problem; iterative technique; nonlinear equations; numerical simulations; regularization scheme; scattered field data; Approximation methods; Dielectrics; Electromagnetic compatibility; Electromagnetic measurements; Electromagnetic scattering; Inverse problems; Iterative methods; Microwave imaging; Nonlinear equations; Numerical simulation; Electromagnetic scattering; imaging systems; inverse problems; microwaves;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2006.876576