应用 Kirchhoff-Helmholtz 积分方法对深度震相的合成

摘要

The paper applies Kirchhoff-Helmhltz integral method in the calculation of the seismic map of the teleseismic depth phase when the seismic origin is under the ground,compares many reflection seismic phases and reflectivity methods,proves KH integral method has better sim-ulation of the reflection-wave phase with higher accuracy,so it can be used to calculate the reflection wave at complicated interface and its calcu-lation efficiency is higher than the finite difference.%将 Kirchhoff-Helmholtz 积分方法应用于合成震源发生在地表之下的深度震相的地震图计算中，计算多次反射震相时与反射率方法进行了比较，表明 KH 积分方法能很好的模拟反射波震相，精度较高，且 KH 积分方法能够计算复杂界面的反射波，其计算效率明显大于有限差分。