DOI: 10.36347/sjahss.2015.v03i03.028

Pages: 783-788

This paper used one order stress - velocity wave equations and staggered grid high order finite difference algorithm to solve the problem. Using Random boundary condition and PML boundary condition to proceed the forward continuation of seismic wave field, which can not only reduce the storage of wave field, but also ensure the accuracy of wave field data. At the same time, we use GPU parallel computing to improve computation efficiency. The experimental results show that, the pre-stack reverse time migration algorithm can form clear image for big stratigraphic dip and migration aperture, and accurate image for complex tectonic geologic body.