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The unsplit convolutional perfectly matched layer absorption performance analysis of evanescent wave in GPR FDTD forward modeling
DS FENG, LY YANG, X WANG - Chinese Journal of Geophysics, 2016 - en.dzkx.org
This article introduces the principle of CPML boundary conditions, and deduces its FDTD
formula for GPR forward modeling, and then compares and analyzes the absorption …
formula for GPR forward modeling, and then compares and analyzes the absorption …
Forward modeling of elastic wave based on CUDA finite difference method with high order rotating staggered grid
MZ ZHAO, J YANG, LJ ZHANG, ZM YUAN… - Progress in …, 2022 - en.dzkx.org
By using the finite difference method of high order rotating staggered grid, the high order
finite difference discretization scheme based on the first-order velocity-stress elastic wave …
finite difference discretization scheme based on the first-order velocity-stress elastic wave …
地震**演数值模拟完全匹配层吸收边界条件研究综述
廉西猛， 单联瑜， 隋志** - 地球物理学进展, 2015 - dzkx.org
由于对边界反射具有优秀的吸收效果, 完全匹配层(Perfectly Matched Layer, PML)
吸收边界条件自被提出就受到了广泛的关注和研究, 并发展成为地震**演数值模拟中应用最广泛 …
吸收边界条件自被提出就受到了广泛的关注和研究, 并发展成为地震**演数值模拟中应用最广泛 …
[PDF][PDF] 基于 CUDA 的高阶旋转交错网格有限差分法的弹性波**演模拟
赵明哲， 杨军， 张陆军， 袁忠明， 王向宇， 王珣， 曹岑… - 地球物理学进展, 2022 - geophy.cn
摘要应用高阶旋转交错网格的有限差分法, 求解了基于一阶的速度 应力弹性波方程,
推导了时间二阶精度空间2m 阶精度的高阶有限差分离散格式. 为了提高弹性波**演模拟效率 …
推导了时间二阶精度空间2m 阶精度的高阶有限差分离散格式. 为了提高弹性波**演模拟效率 …
[HTML][HTML] 探地雷达 FDTD 数值模拟中不**卷积完全匹配层对倏逝波的吸收效果研究
冯德山， 杨良勇， 王珣 - 地球物理学报, 2016 - html.rhhz.net
介绍了CPML 边界条件的原理, 推导了CPML 的GPR **演FDTD 差分公式,
对比分析了Berenger PML, UPML, CPML 三种PML 对倏逝波的吸收性能. 开展了PML …
对比分析了Berenger PML, UPML, CPML 三种PML 对倏逝波的吸收性能. 开展了PML …
On the stability and absorption effect of the multiaxial complex frequency shifted nearly perfectly matched layers method for seismic wave propagation
YQ LUO, C LIU - Chinese Journal of Geophysics, 2020 - en.dzkx.org
In the process of seismic wave simulation calculation, a limited calculation area is used to
simulate the underground infinite space, and boundary truncation is required. In order to …
simulate the underground infinite space, and boundary truncation is required. In order to …
实现复频移完全匹配层吸收边界条件的递推卷积方法
田坤， 黄建**， **振春， **娜， 孔雪… - 吉林大学学报 (地球科学 …, 2013 - xuebao.jlu.edu.cn
完全匹配层吸收边界(PML) 已经被证明是非常有效的边界吸收技术, 对体波和面波的吸收都具有
非常好的效果, 已经被广泛应用于弹性波的数值模拟中. 但是在某些情况下传统的PML …
非常好的效果, 已经被广泛应用于弹性波的数值模拟中. 但是在某些情况下传统的PML …
High precision simulation in frequency domain based on improved acoustic equation and MCPML boundary
YL LIU, ZC LI, MM SUN, J WANG, Q LIU - Chinese Journal of …, 2021 - en.dzkx.org
Numerical dispersion and boundary reflection are two important problems affecting the
simulation results in frequency domain. However, restricted by the computational efficiency …
simulation results in frequency domain. However, restricted by the computational efficiency …
[HTML][HTML] Study and application of imaging condition for reverse-timemigration based on wave-fields separation
X XU, X WANG, Y WANG, Z HU, W LIU… - Progress in Geophysics, 2012 - en.dzkx.org
Reverse-time migration (RTM) has more benefits than any other methods for imaging. RTM
can be used for imaging complex structure and steep dip area. Especially, it has obvious …
can be used for imaging complex structure and steep dip area. Especially, it has obvious …
[PDF][PDF] 高阶交错网格有限差分法纵横波波场分离数值模拟
刘洪林， 陈可洋， 杨微， 吴清岭 - 地球物理学进展, 2010 - dsjyj.com.cn
摘要本文给出了一种等价的弹性波动方程, 以解决完全弹性波场中不能完全分离耦合的纵横波波
场问题. 对该弹性波动方程进行公式换算, 推导出新型等价一阶双曲型方程 …
场问题. 对该弹性波动方程进行公式换算, 推导出新型等价一阶双曲型方程 …