Abstract
Numerical solution algorithm is one of the key technologies in wavefield extrapolation of elastic reverse time migration (ERTM). To improve the imaging result of ERTM, we develop the optimal staggered-grid finite-difference (SGFD) scheme to ERTM. Comparison of the developed optimal SGFD ERTM with conventional SGFD ERTM by testing their processing effects for different models reveals the superiority of our scheme.
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