Smallest number of incident directions for topological derivative imaging: a numerical study

5th International Conference on Mathematical Modeling in Physical Sciences

物理学;数学

Park, Won-Kwang^1

Department of Mathematics, Kookmin University, Seoul

136-702, Korea, Republic of^1

关键词: Homogeneous domain;    Incident fields;    Inhomogeneities;    Inverse scattering problems;    Suitable conditions;    Topological derivatives;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/738/1/012049/pdf
DOI  :  10.1088/1742-6596/738/1/012049

来源: IOP

【 摘 要 】

Various studies have confirmed that only a small number of incident field directions are needed to apply the topological derivative in inverse scattering problem. In this paper, we consider a topological derivative-based technique with a small number of such directions for imaging thin, curve-like dielectric inhomogeneities embedded in a homogeneous domain, and explore a suitable condition via various numerical simulation results.