期刊
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
卷 5, 期 4, 页码 788-792出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LGRS.2008.2005790
关键词
Differential evolution; diffusive regime; subsoil obstacles; time-harmonic 3-D electromagnetic scattering
The characterization of conductive obstacles in subsoil is investigated in the induction regime. Validated by numerical experimentation, a simple model is proposed to calculate the main electromagnetic quantities of interest, the interaction between the obstacles being taken into account. The model is based on the extended Born approximation, the Lax-Foldy multiple diffraction theory, and introduction of equivalent spherical obstacles. Those are retrieved via a hybrid algorithm of differential evolution using a communication strategy between groups, which in particular enables separation of coupled obstacles close to one another.
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