CT理论与应用研究2026，Vol.35Issue(5)：860-868,9.DOI:10.15953/j.ctta.2025.298
基于地震波前动态存储的最短路径射线追踪算法
Shortest Path Ray Tracing Method Based on Dynamic Storage of Seismic Wavefront
摘要
Abstract
Seismic ray tracing algorithms play an important role in seismology and seismic exploration.The modified shortest path method provides more candidate ray directions by adding secondary nodes to the grid surface,which has the advantages of stability,efficiency,and controllable accuracy.However,the addition of secondary nodes significantly increases memory requirements.In this study,we first used a special node numbering method to dynamically store wavefront grids.Then,in conjunction with the modified shortest path method,we developed the shortest path ray tracing method based on dynamic storage of seismic wavefront.The dynamically stored shortest path method(DSPM)can be implemented by revising the modified shortest path method,and both have consistent computational accuracy.Numerical simulation results show that the DSPM algorithm can trace the ray trajectory and travel time in complex media while reducing memory requirements by approximately one order of magnitude and maintaining computational efficiency to a certain extent.This method is suitable for performing parallel ray tracing on a multicore computer and provides an efficient parallel forward algorithm for large-scale inversion tasks.关键词
地震射线追踪/最短路径法/波前动态存储Key words
seismic ray tracing/shortest path method/wavefront dynamic storage分类
天文与地球科学引用本文复制引用
王迪,许心雨,王华明,李兴旺..基于地震波前动态存储的最短路径射线追踪算法[J].CT理论与应用研究,2026,35(5):860-868,9.基金项目
地球深部探测与矿产资源勘查国家科技重大专项(郯-庐断裂带深井井地耦合系统(2024ZD1000403)) （郯-庐断裂带深井井地耦合系统(2024ZD1000403）
国家自然科学基金(三维黏弹性TTI介质中地震射线追踪及走时成像方法研究(42304060)) （三维黏弹性TTI介质中地震射线追踪及走时成像方法研究(42304060）
陕西省自然科学基金(渭河盆地深部各向异性速度及衰减成像(2025JC-YBQN-353)) （渭河盆地深部各向异性速度及衰减成像(2025JC-YBQN-353）
长安大学中央高校基本科研业务费专项资金(黄河流域卫-银盆地深部速度和衰减结构成像(300102264910)). （黄河流域卫-银盆地深部速度和衰减结构成像(300102264910）
