An optimization approach for the localization of defects in an inhomogeneous medium from acoustic far-field measurements at a fixed frequency

Abstract : We are interested in the localization of defects in non-absorbing inhomogeneous media with far-field measurements generated by plane waves. In localization problems, most so-called sampling methods are based on a characterization involving point-sources and the range of some implicitly defined operator. We present here a way to deal with this implicit operator by the means of an optimization approach in the lines of the well-known inf criterion for the factorization method.
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Inverse Problems in Science and Engineering, Taylor & Francis, 2016, 24 (7), pp.1162-1185. <http://www.tandfonline.com/doi/ref/10.1080/17415977.2015.1124426>. <10.1080/17415977.2015.1124426>
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Dernière modification le : mercredi 22 juin 2016 - 12:17:06
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Yann Grisel, Jérémie Fourbil, Vincent Mouysset. An optimization approach for the localization of defects in an inhomogeneous medium from acoustic far-field measurements at a fixed frequency. Inverse Problems in Science and Engineering, Taylor & Francis, 2016, 24 (7), pp.1162-1185. <http://www.tandfonline.com/doi/ref/10.1080/17415977.2015.1124426>. <10.1080/17415977.2015.1124426>. <hal-00804615v2>

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