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    Volume 33 Issue 6
    Jun.  2008
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    Article Contents
    LI Xin-fu, LI Xiao-fan, 2008. Numerical Simulation of Seismic Wave Propagation Using Convolutional Differentiator. Earth Science, 33(6): 861-866.
    Citation: LI Xin-fu, LI Xiao-fan, 2008. Numerical Simulation of Seismic Wave Propagation Using Convolutional Differentiator. Earth Science, 33(6): 861-866.

    Numerical Simulation of Seismic Wave Propagation Using Convolutional Differentiator

    • Publish Date: 2008-11-25
    • To improve the accuracy and the efficiency of seismic wave simulation and to couple the local and global information better, this paper develops a novel modeling approach referring to the convolutional differentiator based on generalized Forsyte orthogonal polynomial, which applies optimal convolutional operators for spatial differentiation in wave equation. The numerical experiment of complex heterogeneous model demonstrates that the algorithm can bring reliable results with high precision and can be extended to seismic wave simulation in anisotropic media. This method is highly precise in generalized orthogonal polynomial convolutional differentiator and also highly efficient in finite difference short operator method. The local and global information can be considered at the same time by optimizing the coefficients of the operator and adjusting the operator length.

       

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