TY - JOUR T1 - Time Domain Linear Sampling Method for Inverse Scattering Problems with Cracks AU - Yue , Yang AU - Ma , Fuming AU - Chen , Bo JO - East Asian Journal on Applied Mathematics VL - 1 SP - 96 EP - 110 PY - 2021 DA - 2021/10 SN - 12 DO - http://doi.org/10.4208/eajam.120421.190721 UR - https://global-sci.org/intro/article_detail/eajam/19922.html KW - Time domain, inverse scattering problem, cracks, boundary integral equation, linear sampling method. AB -

The paper analyses time-dependent scattering and inverse scattering problems with cracks. The well-posedness of the forward scattering problem is proved and a modified retarded potential boundary integral equation method is utilised to solve the forward problem. Besides, the inverse scattering problem of finding the cracks by using measured scattered data is considered. A time domain linear sampling method for inverse problems is developed and the blow-up property is proved. The computation scheme is relatively simple and easy to implement. Numerical examples demonstrate the effectiveness of the methods.