| 复杂介质地震波传播的褶积微分算子数值模拟h |
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| 引用本文： | 李信富,李小凡. 复杂介质地震波传播的褶积微分算子数值模拟h[J]. 地震学报, 2008, 30(4): 377-382 |
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| 作者姓名： | 李信富 李小凡 |
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| 作者单位： | 1) 中国北京100083中国地质大学地质过程与矿产资源国家重点实验室2) 中国北京100029中国科学院地质与地球物理研究所岩石圈演化国家重点实验室 |
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| 基金项目： | 中国地质大学地质过程与矿产资源国家重点实验室课题，国家自然科学基金 |
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| 摘 要： | 将佛尔塞（Forsyte）广义正交多项式微分算子地震波场正演模拟算法运用于复杂非均匀介质模型的波场数值模拟中，并比较了该方法在计算效率和计算精度方面与有限差分方法和伪谱法的差异. 数值结果表明，这种广义正交多项式微分算子法计算速度快、精度高，对计算资源需求低，是一种颇具潜力的数值模拟方法.
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| 关 键 词： | 地震波& 数值模拟& 非均匀介质& 微分算子 |
Numerical simulation of seismic wave propagation in complex media by using convolutional differentiator |
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| Li Xinfu,Li Xiaofan. Numerical simulation of seismic wave propagation in complex media by using convolutional differentiator[J]. Acta Seismologica Sinica, 2008, 30(4): 377-382 |
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| Authors: | Li Xinfu Li Xiaofan |
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| Abstract: | We apply the forward modeling algorithm constituted by the Forsyte Generalized Orthogonal Polynomials proposed by former workers to the seismic wave simulation of complex heterogeneous media, and compare the efficiency and accuracy between this algorithm and other simulation approaches, such as finite difference and pseudospectral method. Numerical experiments demonstrate that the algorithm constituted by Convolutional Forsyte Polynomial Differentiator has high efficiency and accuracy, and needs less computational resources, so it is a numerical modeling method with much potential. |
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| Keywords: | seismic wave numerical simulation heterogeneous media differential operator |
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