Inverse scattering for surface impedance from phase-less far field data
Inverse scattering for surface impedance from phase-less far field data
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DOI：
10.1016/j.jcp.2011.01.038
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发表时间：
2011-05
期刊：
影响因子：
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通讯作者：
O. Ivanyshyn;R. Kress
中科院分区：
文献类型：
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作者：
O. Ivanyshyn;R. Kress
我们提出了一个数值比较的正则化牛顿型方法和直接的方法重建的表面阻抗函数的三维声散射体的形状已知的全远场模式的散射一个入射的时间谐波平面波。此外，我们提出了一个修改的牛顿型算法来恢复一个实值的表面阻抗从相位的远场数据。数值重建表明了方法的可行性。
We present a numerical comparison of a regularized Newton-type method and a direct method for reconstructing the surface impedance function of a three dimensional acoustic scatterer with known shape from the full far field pattern for scattering of one incident time-harmonic plane wave. Furthermore, we propose a modification of the Newton-type algorithm to recover a real-valued surface impedance from phase-less far field data. Numerical reconstructions illustrate the feasibility of the methods.