Elastic wave modeling with high-order temporal and spatial accuracies by a selectively modified and linearly optimized staggered-grid finite-difference scheme
H Zhou, Y Liu, J Wang - IEEE Transactions on Geoscience and …, 2021 - ieeexplore.ieee.org
High-order staggered-grid finite-difference (SFD) schemes are preferred in elastic wave
simulation for geophysical problems because they decrease the accumulation of error from …
simulation for geophysical problems because they decrease the accumulation of error from …
Numerical dispersion mitigation neural network for seismic modeling
K Gadylshin, D Vishnevsky, K Gadylshina, V Lisitsa - Geophysics, 2022 - library.seg.org
We have developed a novel approach for seismic modeling combining conventional finite
differences with deep neural networks. The method includes the following steps. First, a …
differences with deep neural networks. The method includes the following steps. First, a …
A k-space operator-based least-squares staggered-grid finite-difference method for modeling scalar wave propagation
Two staggered-grid finite-difference (SGFD) schemes with fourth-and sixth-order accuracies
in time have been developed recently based on new SGFD stencils. The SGFD coefficients …
in time have been developed recently based on new SGFD stencils. The SGFD coefficients …
A new central compact finite difference scheme with high spectral resolution for acoustic wave equation
Based on the existing cell-node and cell-centered compact finite difference schemes, we
developed a new central compact scheme with a high spectral resolution for the acoustic …
developed a new central compact scheme with a high spectral resolution for the acoustic …
General rectangular grid based time-space domain high-order finite-difference methods for modeling scalar wave propagation
H Chen, H Zhou, S Sheng - Journal of Applied Geophysics, 2016 - Elsevier
We develop the general rectangular grid discretization based time-space domain high-order
staggered-grid finite-difference (SGFD) methods for modeling three-dimension (3D) scalar …
staggered-grid finite-difference (SGFD) methods for modeling three-dimension (3D) scalar …
Optimizing orthogonal-octahedron finite-difference scheme for 3D acoustic wave modeling by combination of Taylor-series expansion and Remez exchange method
H Zhou, Y Liu, J Wang - Exploration Geophysics, 2021 - Taylor & Francis
Using orthogonal-octahedron finite-difference (FD) stencils, even-order accuracy for
temporal and spatial derivatives can be reached for 3D acoustic wave equation modelling …
temporal and spatial derivatives can be reached for 3D acoustic wave equation modelling …
Reducing Numerical Dispersion in Pseudo-3D Space and Constructing Training Dataset
E Gondyul, K Gadylshin, V Lisitsa… - … on Computational Science …, 2024 - Springer
The paper discusses the extension of NDM-net (Numerical Dispersion Mitigation neural
network) to pseudo-3D cases and the construction of training datasets. NDM-net is initially …
network) to pseudo-3D cases and the construction of training datasets. NDM-net is initially …
Modeling acoustic waves in locally enhanced meshes with a staggered-grid finite difference approach
Finite difference is a well-suited technique for modeling acoustic wave propagation in
heterogeneous media as well as for imaging and inversion. Typically, the method aims at …
heterogeneous media as well as for imaging and inversion. Typically, the method aims at …
Optimized time-space domain staggered-grid finite-difference methods based on new finite-difference stencils
H Chen*, H Zhou, Q Zhang, Q Zhang - SEG Technical Program …, 2015 - library.seg.org
Two staggered-grid finite-difference (SGFD) methods with fourth-and sixth-order accuracy in
time have been developed recently based on two new SGFD stencils. The SGFD coefficients …
time have been developed recently based on two new SGFD stencils. The SGFD coefficients …