A time domain sampling method for inverse acoustic scattering problems
A time domain sampling method for inverse acoustic scattering problems
复制标题
一种求解逆声散射问题的时域采样方法
DOI:
10.1016/j.jcp.2016.03.046
复制
发表时间:
2015-10
影响因子:
4.1
通讯作者:
Liu Hongyu
中科院分区:
文献类型:
--
作者:
Guo Yukun;Hoemberg Dietmar;Hu Guanghui;Li Jingzhi;Liu Hongyu
This work concerns the inverse scattering problems of imaging unknown/inaccessible scatterers by transient acoustic near-field measurements. Based on the analysis of the migration method, we propose efficient and effective sampling schemes for imaging small and extended scatterers from knowledge of time-dependent scattered data due to incident impulsive point sources. Though the inverse scattering problems are known to be nonlinear and ill-posed, the proposed imaging algorithms are totally “direct” involving only integral calculations on the measurement surface. Theoretical justifications are presented and numerical experiments are conducted to demonstrate the effectiveness and robustness of our methods. In particular, the proposed static imaging functionals enhance the performance of the total focusing method (TFM) and the dynamic imaging functionals show analogous behavior to the time reversal inversion but without solving time-dependent wave equations.
登录
查看更多内容
DOI:
10.1093/acprof:oso/9780199213535.001.0001
发表时间:
2007-12
期刊:
--
影响因子:
--
作者:
A. Kirsch;N. Grinberg
通讯作者:
A. Kirsch;N. Grinberg
影响因子:
2.1
作者:
H. Alqadah;Nicolas Valdivia
通讯作者:
H. Alqadah;Nicolas Valdivia
DOI:
10.1137/13093409x
发表时间:
2014-07
期刊:
Multiscale Model. Simul.
影响因子:
--
作者:
Jingzhi Li;Hongyu Liu;J. Zou
通讯作者:
Jingzhi Li;Hongyu Liu;J. Zou
DOI:
10.1007/978-1-4757-4317-3
发表时间:
1967
期刊:
--
影响因子:
--
作者:
O. A. Ladyzhenskai︠a︡
通讯作者:
O. A. Ladyzhenskai︠a︡
影响因子:
2.1
作者:
L. Oksanen
通讯作者:
L. Oksanen