CAJ | 학술논문

将基于 Forsyte 广义正交多项式的褶积微分算子法运用于复杂非均匀介质地震波场模拟中，并将计算结果与伪谱法计算结果进行分析比较。通过二者的计算时间对比发现：在同样的计算条件下，褶积微分算子法的采样时间始终小于伪谱法，这是其进行地震波数值模拟的一个明显优势。通过波场快照的对比，褶积微分算子法的模拟结果与伪谱法数值模拟结果的频散效应相当，可为地震波场的值计算提供一种新的选择。
장기우 Forsyte 엄의정교다항식적습적미분산자법운용우복잡비균균개질지진파장모의중，병장계산결과여위보법계산결과진행분석비교。통과이자적계산시간대비발현：재동양적계산조건하，습적미분산자법적채양시간시종소우위보법，저시기진행지진파수치모의적일개명현우세。통과파장쾌조적대비，습적미분산자법적모의결과여위보법수치모의결과적빈산효응상당，가위지진파장적치계산제공일충신적선택。
This study employed the convolutional differentiator seismic simulation method con-structed using Forsyte polynomials to simulate the seismic wave propagation in a complex hetero-geneous media and compared the simulation results to those obtained from the pseudo-spectral method.By comparing the computational time of the pseudo-spectral and convolutional differentia-tor methods,it was found that the computing time of the convolutional differentiator method is always less than that of pseudo-spectral method when the same computing environment is employed.Consequently,the convolutional differentiator seismic simulation method has an advan-tage in this regard.By comparing the snapshots obtained using the above mentioned methods,it was found that the dispersion of the snapshots by the convolutional differentiator is similar to that obtained by the pseudo-spectral method,which constituted another advantage for the convolution-al differentiator method for seismic wave numerical simulation.Overall,the convolutional differen-tiator method is a viable alternative for seismic wave propagation simulation.