Inverse scattering for surface impedance from phase-less far field data

被引：54

作者：

Ivanyshyn, Olha ^{[1
]}

Kress, Rainer ^{[1
]}

机构：

[1] Univ Gottingen, Inst Numer & Angew Math, D-37083 Gottingen, Germany

来源：

JOURNAL OF COMPUTATIONAL PHYSICS | 2011年 / 230卷 / 09期

关键词：

Inverse scattering; Impedance boundary condition; Phase-less far field data; Regularized Newton iterations; SHAPE; OBSTACLE;

D O I：

10.1016/j.jcp.2011.01.038

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

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. (c) 2011 Elsevier Inc. All rights reserved.

引用

页码：3443 / 3452

页数：10

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