摘要
给出了基于旅行时双线性插值(LTI)的三维横向各向同性(VTI)介质中的地震初至波旅行时计算及射线追踪方法,通过三维均匀及水平层状VTI介质模型的试算,证实了该方法的准确性及适应性.该方法可用于三维VTI介质中的深度偏移及层析成像.
In the paper,linear travel-time interpolation method based on Fermat＇s principle is applied to calculate seismic firstbreak time and seismic ray path tracing in 3-D transversely isotropic media is given.Based on three dimensional uniform and horizontal layer transversely isotropic medium model trial proved the feasibility of this method and accuracy,This method can be applied to the three dimensional transverse isotropic medium depth migration and seismic tomography research.
出处
《地球物理学进展》
CSCD
北大核心
2014年第3期1201-1205,共5页
Progress in Geophysics
基金
国家科技重大专项课题(2011zx05024-001-03)资助
