.png){kind=icon}
返回
Sparse Electromagnetic Imaging Using Nonlinear Landweber Iterations
.png){kind=icon}
OA
AI
DOI：10.2528/PIER15052806.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
A scheme for efficiently solving the nonlinear electromagnetic inverse scattering problem on sparse investigation domains is described. The proposed scheme reconstructs the (complex) dielectric permittivity of an investigation domain from fields measured away from the domain itself. Least-squares data misfit between the computed scattered fields, which are expressed as a nonlinear function of the permittivity, and the measured fields is constrained by the L-0/L-1-norm of the solution. The resulting minimization problem is solved using nonlinear Landweber iterations, where at each iteration a thresholding function is applied to enforce the sparseness-promoting L-0/L-1-norm constraint. The thresholded nonlinear Landweber iterations are applied to several two-dimensional problems, where the measured fields are synthetically generated or obtained from actual experiments. These numerical experiments demonstrate the accuracy, efficiency, and applicability of the proposed scheme in reconstructing sparse profiles with high permittivity values.
Keyword:
INEXACT-NEWTON METHOD
INVERSE SCATTERING
ALGORITHM
BORN
RECONSTRUCTION
期刊
P
IF:
9.3
论文数:
2.9K
被引数:
2.7K
机构
引用论文
.png){kind=icon}
A Fluorometric Assay for DNA Cleavage Reactions Characterized with BamHI Restriction Endonuclease
OAAI
OAAI分享收藏
查看更多内容