摘要
海上地震资料存在大量干扰。造成叠加、偏移剖面分辨率、信噪比降低,甚至产生笑脸、画弧等虚假构造,所以必须在叠加之前剔除它们。但要实现计算机自动识别干扰,必须对其特征进行准确地描述。本文对各种形式的干扰作了适当的分类,介绍了其对叠加剖面造成的影响。然后对干扰进行了分类描述和总结概括。最后提出了一个剔除干扰的方法。
A lot of low frequency interference seriously contaminates field seismic data, which levels down the resolution and the ration S/N of the stacking sections. Even more, the in- terference creates structures of smiles and arcs so as to deform actual seismic stacked sec- tions. Therefore, it is necessary to pick out them before stacking. An exact description of characteristics of the interference is required in order to realize the recognition of interfer- ence automatically by computer. This article classified all kinds of interference and de- scribed its characteristics with pictures and diagrams. Additionally, a method to suppress interference is supplied.
出处
《南海地质研究》
1999年第0期86-92,共7页
Gresearch of Eological South China Sea
关键词
干扰
特征
识别
压制
interference, characteristics, recognition, pick out
