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            <title xml:lang="en">A boundary-oriented inverse scattering method based on contour deformations by means of level sets for radar imaging</title>
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                <forename type="first">R.</forename>
                <surname>Ferraye</surname>
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                <forename type="first">Jean-Yves</forename>
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            <idno type="halRefHtml">&lt;i&gt;International Journal of Applied Electromagnetics and Mechanics&lt;/i&gt;, 2002, 15 (1-4), pp.213-218. &lt;a target="_blank" href="https://dx.doi.org/10.3233/JAE-2002-457"&gt;&amp;#x27E8;10.3233/JAE-2002-457&amp;#x27E9;&lt;/a&gt;</idno>
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                <title xml:lang="en">A boundary-oriented inverse scattering method based on contour deformations by means of level sets for radar imaging</title>
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                <title level="j">International Journal of Applied Electromagnetics and Mechanics</title>
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              <p>A boundary-oriented method for 2D electromagnetic inverse scattering in TM polarization and time-harmonic dependence is presented for perfectly conducting objects [1,2]. Key points of the method include a kinematical description of the contours of the objects, the introduction of pseudo-currents to ensure stability and the use of a level set method for deforming the contours. Level set methods [3] allow to handle automatically the changes of topology and to regularize naturally the contours. In this way, several objects can be retrieved starting from one single initial guess. The frequency hopping technique turns out to play a very important role in the inversion process. This method gives highly accurate reconstructions within relatively short computational times.</p>
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