摘要： 逆时偏移(RTM)成像波场逆推具有计算量大和运算速度慢的问题。为此，根据叠前深度RTM算法的特点，运用稳定条件、边界条件、成像条件3个要件并基于消息传递接口，提出全波波动方程叠前深度RTM成像并行算法。与传统柯西霍夫叠前深度偏移算法进行对比的结果表明，该算法能够较好地对地震数据进行偏移成像，成像效果优于传统算法并且并行速度较快。
关键词:
逆时偏移,
稳定条件,
边界条件,
成像条件,
消息传递接口
Abstract: The large calculation capacity and slow running speed restrict the development and application of Reverse Time Migration(RTM). The paper proposes a full wave equation pre-stack depth RTM parallel imaging method based on the characteristics of Message Passing Interface(MPI) and RTM which applies the three conditions, and compared with the Kirchhoff pre-stack depth method, results show that the efficiency of MPI parallel method is good, it can process the seismic data migration imaging well and the parallel speed is fast.
Key words:
Reverse Time Migration(RTM),
stability condition,
boundary condition,
imaging condition,
Message Passing Interface(MPI)
中图分类号:
张晓丹, 柯熙政, 张志禹. 叠前深度逆时偏移成像的并行算法研究[J]. 计算机工程, 2011, 37(19): 249-251.
ZHANG Xiao-Dan, KE Xi-Zheng, ZHANG Zhi-Yu. Parallel Algorithm Research on Pre-stack Depth Reverse Time Migration Imaging[J]. Computer Engineering, 2011, 37(19): 249-251.