摘要
作者把 Berkhout( 1 992 )提出的合成平面波技术应用于线性 Rytov近似叠前深度偏移 ,提高了波动方程叠前深度偏移的计算效率。通过在 Marmousi模型数据试验 ,我们认为在达到基本相同成像效果的条件下 ,利用合成平面波技术的波动方程叠前深度偏移相对于基本共炮集数据的波动方程叠前深度偏移可提高计算效率约 1
In order to improve the calculation efficiency of prestack depth migration with wave equation, we apply the synthesis plane wave technology introduced by Berkhout(1992) to Rytov approximation. The test on Mamousi model data shows that the calculation efficiency of prestack depth migration with wave equation by the synthesis plane wave technology for common shot gather can be improved about 10 times faster than that with the wave equation with the same imaging quality.
出处
《物探化探计算技术》
CAS
CSCD
2001年第3期193-198,共6页
Computing Techniques For Geophysical and Geochemical Exploration
