摘要有限差分方法(Finite differenceMethod, FD) 广泛用于地震波场数值模拟,
但其存在固有的数值频散问题, 影响模拟的计算效率和数值精度. 本文主要研究了有限差分方法 …

Finite-difference (FD) method is the most extensively employed numerical modeling
technique. Nevertheless, when using the FD method to simulate the seismic wave …

The finite-difference (FD) method is widely used for simulating complex wavefield
propagation because of its high accuracy and efficiency. However, it suffers from numerical …

The finite-difference (FD) scheme is popular in the field of seismic exploration for numerical
simulation of wave propagation; however, its accuracy and computational efficiency are …

The time-space-domain finite-difference method (FDM) is widely used in forward modeling
of wave equations. Conventional explicit FDMs (EFDMs)(with high order in space and the …

Reverse time migration (RTM) generally uses the zero-lag crosscorrelation imaging
condition, requiring the source and receiver wavefields to be known at the same time step …

We have developed a general method to obtain the equiripple and the least-squares finite-
difference (FD) operator weights to compute arbitrary-order derivatives from arbitrary sample …

The time–space domain explicit finite-difference (FD) method numerically solves wave
equation by applying FD to approximate its spatial and temporal derivatives. This method …

As the underground medium is not completely elastic, seismic waves will experience
attenuation during propagation. To accurately simulate this phenomenon, many feasible …

The finite-difference (FD) method is widely used in numerical simulation; however, its
accuracy suffers from numerical spatial dispersion and numerical anisotropy. The single …