Application of the factorization method to retrieve a crack from near field data
Application of the factorization method to retrieve a crack from near field data
复制标题
应用因式分解方法从近场数据中检索裂纹
DOI:
10.1515/jiip-2014-0073
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发表时间:
2015
影响因子:
1.1
通讯作者:
Yan Guozheng
中科院分区:
文献类型:
--
作者:
Guo Jun;Hu Junhao;Yan Guozheng
Abstract We consider the inverse scattering problem of determining the shape of a crack with impedance boundary condition on one side from the complex conjugate of point sources placed on a closed curve which contains the crack. The near field factorization method is established to reconstruct the crack from the measurements on the same curve. Then, we deduce an inversion algorithm and present some numerical examples to show the viability of our method. So far as we know, when the incident waves are the point sources, the near field operator cannot be directly decomposed into the form that the factorization method required. However, we overcome this difficulty with the complex conjugate of point sources which are recently used in [Inverse Problems 30 (2014), Article ID 095005], [Inverse Problems 30 (2014), Article ID 045008] for the justification of the factorization method from near field data.
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DOI:
10.1093/acprof:oso/9780199213535.001.0001
发表时间:
2007-12
期刊:
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影响因子:
--
作者:
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通讯作者:
A. Kirsch;N. Grinberg
影响因子:
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影响因子:
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作者:
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