Travel-time computation based on linear interpolation and narrow-band technique
Sun Zhang-qing1,2, Sun Jian-guo1,2, Han Fu-xing1,2
1. College of Geoexploration Science and Technology,Jilin University,Changchun City,Jilin Province,130026,China;
2. Open Lab of Applied Geophysical comprehensive Interpretation Theory-Lab of Wave Theory and Imaging Technology,Ministry of Land and Resource,Jilin University,Changchun City,Jilin Province,130026,China
Abstract：In order to solve the problem that it is difficult to deal with both the computational precision and efficiency in travel-time computation,the paper presented a new travel-time computation based on linear interpolation and narrow-band technique that uses linear interpolation to implement local travel-time computation and narrow-band technique to simulate the propagating process of wavefront. The numeric analysis showed that both computational precision and efficiency are higher than first-order and second-order finite-difference algorithm based narrow-band technique; it is proved the feasibility of the method by numeric computation of some typical complex velocity models and good adaptability for complex velocity model.
孙章庆, 孙建国, 韩复兴. 基于线性插值和窄带技术的走时计算方法[J]. 石油地球物理勘探, 2009, 44(4): 436-441.
Sun Zhang-qing, Sun Jian-guo, Han Fu-xing. Travel-time computation based on linear interpolation and narrow-band technique. OGP, 2009, 44(4): 436-441.
