地震波吸收衰减模拟及反滤波处理  

Seismic Wave Absorption and Attenuation Simulation and Anti-Q Filter Processing

作　　者：韩坤 王祥春[1] 

机构地区：[1]中国地质大学(北京),地球物理与信息技术学院,北京

出　　处：《自然科学》2020年第4期252-257,共6页Open Journal of Nature Science

摘　　要：地震波在地层中的衰减属性用品质因子Q来表示,Q值越大,衰减越弱,Q值越小,衰减越强。反Q滤波是一种补偿大地滤波效应的技术,在已知Q值的情况下,进行反Q滤波可以达到改善地震资料品质的目的。本文数值模拟了地震波的衰减效应,并进行了反Q滤波处理,消除了地层对地震波的衰减效应,取得了较好的效果。The attenuation attribute of seismic wave in the stratum is expressed by the quality factor Q. The larger the Q value is, the weaker the attenuation is. The smaller the Q value is, the stronger the attenuation is. Anti-Q filtering is a technique to compensate the effect of geodetic filtering. Under the condition of known Q value, the quality of seismic data can be improved by using anti-Q filtering. In this paper, the attenuation effect of seismic wave is simulated numerically, and the anti-Q filtering is carried out to eliminate the attenuation effect of strata on seismic wave, and good results are obtained.

关 键 词：地震波 Q值 反Q滤波 

分 类 号：P31[天文地球—固体地球物理学]