Improved Microwave Imaging Procedure for Non-Destructive Evaluations of Two-Dimensional Structures

Caorsi, Salvatore and Massa, Andrea and Pastorino, Matteo and Donelli, Massimo (2003) Improved Microwave Imaging Procedure for Non-Destructive Evaluations of Two-Dimensional Structures. UNSPECIFIED. (In Press)

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    Abstract

    An improved microwave procedure for detecting defects in dielectric structures is proposed. The procedure is based on the integral equations of the inverse scattering problem. A hybrid Genetic Algorithm is applied in order to minimize the obtained nonlinear functional. Since in nondestructive evaluations the unperturbed object is completely known, it is possible off-line to numerically compute the Green's function for the configuration without defects. Consequently, a very dignificant computation saving is obtained, since the 'chromosome' of the Genetic Algorithm codes only the parameters describing the unknown defect.

    Item Type: Departmental Technical Report
    Department or Research center: Information Engineering and Computer Science
    Subjects: Q Science > QC Physics (General) > QC760 Electromagnetism
    Uncontrolled Keywords: Nondestructive Evaluation, Microwave Imaging, Genetic Algorithms, Green's Function
    Additional Information: Submitted for consideration for publication, and revised IEEE AP 03.01, IEEE Transaction on Antennas and Propagation
    Report Number: DIT-03-040
    Repository staff approval on: 02 Sep 2003

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