Two-dimensional multivalued traveltime and amplitude maps by uniform sampling of a ray field

被引：88

作者：

Lambare, G ^{[1
]}

Lucio, PS ^{[1
]}

Hanyga, A ^{[1
]}

机构：

[1] UNIV BERGEN,INST SOLID EARTH PHYS,N-5007 BERGEN,NORWAY

来源：

GEOPHYSICAL JOURNAL INTERNATIONAL | 1996年 / 125卷 / 02期

关键词：

Green's functions; numerical techniques; ray theory; ray tracing; traveltime; wave propagation;

D O I：

10.1111/j.1365-246X.1996.tb00021.x

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

An algorithm for computing multivalued maps for traveltime, amplitude or any other ray-related variable is presented. It is based on a wavefront construction method, where the ray field is decomposed into elementary cells defined by adjacent rays and wavefronts, A sampling criterion for ray density in the phase space is suggested. It is demonstrated that this new criterion ensures uniform ray density over the entire ray held including caustics, The method is applied to complex models.

引用

页码：584 / 598

页数：15

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