An Improved 3-D Ray Tracing Method Using Linear Traveltime Interpolation  

作　　者：YANG Yan JIANG Linshun ZHANG Dong QIN Qianqing XU Lin 

机构地区：[1]School of Physics and Technology, Wuhan University,Wuhan 430072, Hubei, China [2]State Key Laboratory of Information Engineering inSurveying, Mapping and Remote Sensing/Wuhan University, Wuhan430072, Hubei, China [3]Research Institute of Petroleum Exploration and Production,China National Petroleum Corporation, Beijing 100082, China

出　　处：《Wuhan University Journal of Natural Sciences》2010年第6期505-509,共5页武汉大学学报（自然科学英文版）

基　　金：Supported by the National Natural Science Foundation of China (69983005)

摘　　要：An approach of three-dimensional seismic ray tracing is presented,which is derived from adopting two-dimensional linear traveltime interpolation（LTI）.By adjusting the forward process using the partition of grid interface,and backward step by considering more directions,the new approach is suitable for the application of three-dimensional models.The calculation results show that,with the same accuracy,the improved 3-D method is much faster than the method of traditional LTI directly applied in the three-dimensional case.An approach of three-dimensional seismic ray tracing is presented,which is derived from adopting two-dimensional linear traveltime interpolation（LTI）.By adjusting the forward process using the partition of grid interface,and backward step by considering more directions,the new approach is suitable for the application of three-dimensional models.The calculation results show that,with the same accuracy,the improved 3-D method is much faster than the method of traditional LTI directly applied in the three-dimensional case.

关 键 词：3-D ray tracing linear traveling interpolation（LTI） partition of grid interface minimum traveltime 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] P315.31[自动化与计算机技术—计算机科学与技术]