张海文教授学术报告

发布时间:2017年11月21日 作者:唐颖   消息来源:业务办    阅读次数:[]

题目 :A direct imaging method for inverse scattering problem by unbounded rough surfaces

报告人:张海文教授 中国科学院数学与系统科学研究院

报告时间:2017年11月24号星期五下午16:00-17:00

报告地点:数理楼145报告厅

摘要:

In this talk, we consider the inverse acoustic scattering problems by an unbounded rough surface. A direct imaging method is proposed to reconstruct the rough surfaces from Cauchy data of the scattered field for incident point sources. The performance analysis is also studied by using integral equation method. The reconstruction method is very robust to noises of measured data and works for penetrable surfaces and impenetrable surfaces with Dirichlet or impedance boundary conditions. Finally, numerical examples are carried out to illustrate that our method is fast, accurate and stable.



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