“…And it was later developed for waveequation migration algorithms by Kuehl and Sachhi (2002). Then, LSM is performed with the Kirchhoff migration operator (Huang et al, 2013a;Liu et al, 2013), one-way equation migration operator (Huang et al, , c, 2013bYang and Zhang, 2008;Kuehl and Sachhi, 2001) and two-way equation migration operator (Li et al, 2015Huang et al, 2014a;Dai and Schuster, 2013;Dai et al, 2012Dai et al, , 2011Dai et al, , 2010.…”