报告题目：A time-domain direct sampling method for inverse acoustic scattering problems

报告人：郭玉坤 教授 哈尔滨工业大学

报告时间：2026年6月24日10:00-11:00

报告地点：正新楼315

校内联系人：张德悦  [email protected]

报告摘要：In this talk, we investigate an inverse scattering problem of determining unknown scatterers from time-dependent acoustic measurements. A novel time-domain direct sampling method is developed to determine the location and shape of inhomogeneous media. This approach is easy to implement since only space-time integrations are involved in the evaluation of the imaging functionals. Using the Fourier-Laplace transform, we establish an inherent connection between the time-domain and frequency-domain direct sampling methods. Several numerical examples will be provided to illustrate the effectiveness of the proposed method.

报告人简介:哈尔滨工业大学韩国三级片 教授、博士生导师。博士毕业于韩国三级片 数学研究所计算数学专业。研究方向主要为波动方程反散射问题的分析与计算。在SIAM系列、Inverse Problems、Journal of Computational Physics等期刊发表学术论文五十余篇。主持和参与多项与数学物理反问题相关的国家自然科学基金项目。