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Article Dans Une Revue Inverse Problems Année : 2012

An extended-DORT method and its application in a cavity configuration

Xiaoyun Zhang
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Hervé Tortel
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Amelie Litman
Jean-Michel Geffrin

Résumé

In this work, we present an extension of the classical DORT method for time-harmonic inverse medium scattering problems. This tool enables one to estimate the shape of the unknown scatterers even if they are not necessarily point-like scatterers. This method is described and compared with existing sampling methods. Moreover, a mathematical derivation is provided for its validation, either in a free-space environment or in a metallic enclosure setup. Two-dimensional examples, based on measured data sets acquired in the circular microwave scanner developed at Institut Fresnel, are presented, which show that the method is computationally efficient and robust to noise.
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Dates et versions

hal-00944610 , version 1 (05-11-2018)

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Xiaoyun Zhang, Hervé Tortel, Amelie Litman, Jean-Michel Geffrin. An extended-DORT method and its application in a cavity configuration. Inverse Problems, 2012, 28 (11), pp.115008. ⟨10.1088/0266-5611/28/11/115008⟩. ⟨hal-00944610⟩
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