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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.
The travel time calculation and ray tracing method of first arrival seismic wave in 3D transversely isotropic (VTI) media based on bilinear interpolation (LTI) of travel time are given. Through the trial calculation of 3D homogeneous and horizontal layered VTI media model , Which confirms the accuracy and adaptability of this method.The method can be used for depth migration and tomography in 3D VTI media.