摘要
以往分离纵、横渡仅考虑了纵横波的编报特性,未考虑自由界面的影响。实际上入射到自由界面的纵、横波是客观存在的。为此平文试图在纵、横波分离中综合考虑偏振特性与自由界面散射特性。文中理论指导给出的界式.既可体现纵、横渡的动力学偏振特性,又可自动消除自由界面的影响。对实际资料的试算收到了良好的效果,说明该方法是可行的。
People only consider polarization characters of compressional and shear wavesbut neglect free interface effect in separating shear wave from compressional wave.It is posltive that compressional and shear waves are also incident upon free inter-face- Hence, both polarization character and free interface scattering are consideredin separating off compressional wave and shear wave in this article. Theoreticalcomputation formulae in this article not only reflect the dynamic polarization char-acters but also remove free interface effect. Good result has been seen in real dataprocessing. The method is feasible.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
1998年第2期198-203,共6页
Oil Geophysical Prospecting
关键词
地震数据处理
地震波
自由界面
偏振特性
seismic data processing, separation of compressional wave and shear wave, free interface, polarization characteristic