试验结果表明，随着应力波数量的增加，叠前偏移剖面能够反映的缺陷区域更广，成像更加清晰。
Results show that with the increase of the number of stress wave, the clear imaging region became broader and the image of the defect became clearer.
在频率-波数域中，详细地推导出了对地震记录进行三维偏移归位的全部计算公式，并给出了能在中小型计算机上实施的程序结构和流程。
Formulas for 3d migration of seismic data in frequency-wave number domain are derived. The software and procedure used on medium -sized computer and minicomputer are given.
作为高精度波形反演或逆时偏移的重要组成部分，地震波数值模拟对计算速度和效率提出了更高要求。
As a crucial part of high-resolution waveform inversion and reverse time migration, seismic modeling demands a high efficiency of computation.
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