论文标题
将RBF-FD求解器应用于Helmholtz方程式到全波倒置
Application of an RBF-FD solver for the Helmholtz equation to full-waveform inversion
论文作者
论文摘要
完整的波形反转（FWI）是一种允许从表面或表面附近的波的测量值重建地下地下参数的方法之一。这是一个数值优化问题，它使用所有到达的整个波形信息来更新控制地震波传播的地下参数。我们将FWI应用于两个众所周知的基准：Marmousi和2004 BP速度模型。对于正向建模，我们在六角形网格和准最佳形状参数上使用RBF-FD求解器。
Full waveform inversion (FWI) is one of a family of methods that allows the reconstruction of earth subsurface parameters from measurements of waves at or near the surface. This is a numerical optimization problem that uses the whole waveform information of all arrivals to update the subsurface parameters that govern seismic wave propagation. We apply FWI in the multi-scale approach on two well-known benchmarks: Marmousi and 2004 BP velocity model. For the forward modeling, we use an RBF-FD solver on hexagonal grids and quasi-optimal shape parameters.
