Full-waveform redatuming via a TRAC approach: A first step towards target oriented inverse problem

JOURNAL OF COMPUTATIONAL PHYSICS

卷:440

Article

Assous, Franck¹  Nataf, Frederic² 

[1] Ariel Univ, Dept Math, IL-4076414 Ariel, Israel

[2] Sorbonne Univ, Lab JL Lions, 4 Pl Jussieu, F-75005 Paris, France

关键词: Redatuming;    Time reversal;    Iterative method;    Inverse problem;   

DOI  :  10.1016/j.jcp.2021.110377

来源: Elsevier

【 摘 要 】

In inverse problems, redatuming data consists in virtually moving the sensors from the original acquisition location to an arbitrary position. This is an essential tool for target oriented inversion. An exact redatuming method which has the peculiarity to be robust with respect to noise is proposed. Our iterative method is based on the Time Reversal Absorbing Conditions (TRAC) approach [1] and avoids the need for a regularization strategy. Numerical results and comparisons with other redatuming approaches illustrate the robustness of our method. (C) 2021 Elsevier Inc. All rights reserved.

【 授权许可】

Free