【摘要】 走时计算的可行性在很大程度上决定了Kirchhoff积分法偏移的效果,而基于PC-Cluster的并行计算是实施叠前偏移数据计算量大的基本工具.本文针对这两个问题的研究,阐明两种旨在提高复杂情况叠前时间偏移聚焦能力的弯曲射线对称走时及非对称走时的计算方法,以及旨在提高叠前偏移计算效率的"数据并行"和"成像点并行"策略,并分别对其结果进行了对比分析.更多还原

【Abstract】 As we know that traveling time computation determines the precision of Kirchhoff migration in some way and parallel computing is the efficient method in accelerating the computation.In the paper,we introduce two traveling time computation methods in order to improve the efficiency of complex structure imaging,We introduce two parallel methods which are "data parallel " and "image points parallel".At last,we compare the two methods with real data.更多还原