一种改进的频率—波数域倾角扫描去噪方法  

An improved dip-scanning method for denoise in frequency-wavenumber domain

作　　者：安勇[1] 杨长春[2] 

机构地区：[1]中国石油大学(北京)CNPC物探重点实验室 [2]中科院地质与地球物理研究所

出　　处：《石油地球物理勘探》2008年第2期210-212,127+246,共5页Oil Geophysical Prospecting

摘　　要：常规的倾角扫描大多在时间—空间域进行,本文利用地震剖面的时间—空间坐标与其二维傅里叶变换之间的对应关系,对常规频率—波数域滤波方法进行改进,在频率—波数域进行倾角扫描。通过理论模型计算和实际地震资料的处理,该方法在压制噪声干扰的同时,实现了在频率—波数域的倾角拾取,表明该方法是一种具有实用价值的方法。The conventional dip-scanning is mostly used in the time-space domain.Using corresponding relationship between the time-space domain of seismic section and its 2-D Fourier transform,the paper improved the conventional filtering method in frequency-wavemumber domain and implemented dip-scanning in frequency-wavemumber domain.It is shown by theoretical model computation and processing of practical seismic data that the method realized the dip pickup in frequency-wavemumber domain while suppressing interferenc...

关 键 词：倾角时差 时间—空间域 频率—波数域 倾角扫描 

分 类 号：P631.4[天文地球—地质矿产勘探]