波动方程多次波压制技术的进展  

Progress in Multiple Attenuation Techniques Based on Wave Equation

作　　者：牛滨华[1] 沈操[1] 黄新武[1] 

机构地区：[1]中国地质大学(北京),北京100083

出　　处：《地球物理学进展》2002年第3期480-485,共6页Progress in Geophysics

基　　金：国家自然科学基金项目 (4 99740 2 8)资助

摘　　要：多次波问题是海洋地震勘探中最突出的问题之一 ,如何有效地压制多次波是数据处理中的一个关键问题 .多次波压制技术分为两大类 :基于有效波和多次波之间差异的滤波方法和基于波动方程的多次波预测减去法 .针对有代表性的波动方程方法 -基于反馈模型的迭代反演多次波压制技术做了较深入的讨论 .目前在解决多次波问题时 ,基于波动理论的方法应得到重视 .Multiple attenuation is a critical task for seismic data processing, especially for marine data. Methods that attenuate multiples can be classified as belonging to two broad categories: (1)those that seek to exploit a feature or property that differentiates primary from multiple and (2)those that predict and then subtract multiples from seismic data. The former are typically filtering methods and the latter are generally based on the prediction from either modeling or inversion based on wave equation. The algorithm based on the feedback model is being discussed in detail because it has a lot of advantages. Methods based on wave equation should be paid more attentions.

关 键 词：波动方程 压制技术 自由界面多次波 内部多次波 反馈迭代反演 海洋地震勘探 

分 类 号：P714.8[天文地球—海洋科学]