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STRENGTHENED LINEAR SAMPLING METHOD WITH A REFERENCE BALL

delete2010-01-01
delete69
PRE
AI
J
Jingzhi Li *
H
Hongyu Liu
J
Jun Zou
DOI:10.1137/080734170delete
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摘要

摘要

En 中文
By adding a reference ball as an extra artificial obstacle component to the underlying scattering system, we propose a simple but robust and effective technique to choose the crucial cut-off value required in the linear sampling method (LSM) for inverse scattering problems. The reference ball technique causes few extra computational costs to the LSM, but brings in a practically important byproduct, i.e., it eliminates the interior eigenvalue problem automatically, a well-known barrier when applying the LSM. Some mathematical justifications of the new technique are provided, and numerical experiments are also presented to demonstrate its feasibility and effectiveness.
Keyword:
inverse scattering problems
linear sampling method
cut-off value
interior eigenvalue problems

期刊

SIAM Journal on Scientific Computing 封面图
SIAM Journal on Scientific Computing
IF:
2.6
论文数:
5.1K
被引数:
1.8W

机构

U
University of Washington
学者数:
8.0W
论文数: 7.0W
被引数: 12.5W
C
Chinese University of Hong Kong
学者数:
3.4W
论文数: 3.2W
被引数: 5.6W
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