回折波CT成像及其应用

Diving Wave CT Imaging and Application

本文评述在研究岩石圈结构时，根据已往采用广角反射波和折射波的信息进行正反演的方法来研究岩石圈结构．这种研究方法对那种成层性比较发育的地区效果比较好，而对于花岗岩地区或成层性不好的地区，这种方法就无能为力了．这样我们运用了回折波时间场和回折波ＣＴ成像方法相结合的系统来研究地下介质的速度结构，这种方法精度高，简单易行．并且把这种方法与以往用的正反演解释方法相比较，二者结果一致．

An algorithm method is based on linearized approach to the inverse kinematicseismic problem solution in the investigation of lithosphere.The main difference and advantagein comparison with analogous algorithms of wide angle reflectior wave is the effective choice ofthe initial velocity model adaptively changing along a profile.This program can be used for interpretation of materials of seismic studies in a mountainregions and also for evaluation profiles in various geological conditions.