Target-Enclosed Least-Squares Seismic Imaging

Least-Squares Reverse-Time Migration (LSRTM) is a method that seismologists utilize to compute high-resolution subsurface image. Nevertheless, LSRTM computationally demanding problem. One way reduce the computational costs of choose small region interest and image region. However, finding representations account for wavefields entering target from surrounding boundaries necessary. This paper confines between two above below this The acoustic reciprocity theorem employed derive at upper lower With help these representations, target-enclosed algorithm developed interest. Moreover, possibility using virtual receivers created by Marchenko redatuming investigated.