On the identification of defects in a periodic waveguide from far field data

被引：22

作者：

Bourgeois, L. ^{[1
]}

Fliss, S. ^{[1
]}

机构：

[1] Ecole Natl Super Tech Avancees, Lab POEMS, UMR ENSTA CNRS INRIA, F-91762 Palaiseau, France

来源：

INVERSE PROBLEMS | 2014年 / 30卷 / 09期

关键词：

periodic waveguide; factorization method; linear sampling method; far field; Floquet mode; FACTORIZATION METHOD; INVERSE SCATTERING;

D O I：

10.1088/0266-5611/30/9/095004

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The aim of this paper is to apply the linear sampling method and the factorization method to retrieve some defects in a known periodic 2D waveguide from scattering data. More precisely, some far field approximations of these two sampling methods are derived. They amount to considering the so-called propagating Floquet modes as incident waves. The efficiency of the far field formulation of the linear sampling method is shown with the help of some numerical experiments.

引用

页数：31

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