An Adaptive Weighting Strategy for Microwave Imaging Problems

Bort, Emmanuele and Donelli, Massimo and Martini, Anna and Massa, Andrea (2004) An Adaptive Weighting Strategy for Microwave Imaging Problems. UNSPECIFIED. (In Press)

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    In the framework of microwave imaging applications, an innovative strategy aimed at addressing the multi-objective inverse scattering problem is proposed. Starting from the spatial-domain integral formulation, the original multi-objective problem is recast into a single-objective one by defining a suitable cost function as a linear combination of the data and state terms according to variable weighting parameters. By iteratively tuning these paramenters, the optimization procedure is forced to solve an 'almost' multi-objective problem avoiding the use of ad-hoc multiple-objective optimization methods and satisfying different objectives in a balanced way. Selected numerical results indicate that the use of such a strategy yields to accurate reconstructions, with noise-corrupted data as well, by improving the performances of the adopted optimization procedure.

    Item Type: Departmental Technical Report
    Department or Research center: Information Engineering and Computer Science
    Subjects: Q Science > QC Physics (General) > QC661 Electromagnetic Theory
    Uncontrolled Keywords: Microwave imgaging, inverse scattering, adaptive weighting, genetic algorithms
    Report Number: DIT-04-064
    Repository staff approval on: 01 Sep 2004

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