講座主題：An approximate factorization method for inverse acoustic scattering with phaseless total-field data
專家姓名：張海文
工作單位：中科院數(shù)學與系統(tǒng)科學研究院
講座時間：2021年10月26日 14:00-15:00
講座地點：騰訊會議：757375919
主辦單位：煙臺大學數(shù)學與信息科學學院
內容摘要：
This talk is concerned with the inverse acoustic scattering problem with phaseless total-field data at a fixed frequency. An approximate factorization method is developed to numerically reconstruct both the location and shape of the unknown scatterer from the phaseless total-field data generated by incident plane waves at a fixed frequency and measured on the circle with a sufficiently large radius. The theoretical analysis of our method is based on the theory of oscillatory integrals. To the best of our knowledge, this is the first attempt to develop a factorization type method for inverse scattering problems with phaseless data.
主講人介紹：
張海文，中國科學院數(shù)學與系統(tǒng)科學研究院副研究員。研究方向為聲波與電磁波反散射問題。2018年獲全國反問題年會青年學術獎。2019年入選中國科學院數(shù)學與系統(tǒng)科學研究院“陳景潤未來之星”計劃。2021年入選中國科學院“青年創(chuàng)新促進會”會員。在SIAM J. Appl. Math.、SIAM J. Imaging Sci.、SIAM J. Sci. Comput.、Inverse Problems、J. Comput. Phys.等學術期刊上發(fā)表論文20余篇。
