摘要
傅立叶相关系数是指 2个频率成份或波数成份的相位差的余弦。利用傅立叶相关系数建立一个滤波器 ,在FX域或FK域利用频率和时差把相干干扰从地震记录中分离出来。它的假设条件是有效信号的倾角小于相干干扰 ,其优点是运算简捷 ,参数少 ,效率高 ,在实际地震资料处理中取得了满意的效果。
Fourier correlation coefficient is the cosine of phase differences between two frequency or wavenumber components. A filter has been designed by using Fourier correlation coefficients, which can used to separate coherent noises from signals in seismic data either in FK or FX domains on the assumption that the dip of signals is less than that of coherent noises. The advantages of the method are simple and fast in computation and less in parameters. Satisfactory results have been obtained in real data processing.
出处
《石油物探》
EI
CSCD
2001年第4期89-93,105,共6页
Geophysical Prospecting For Petroleum
关键词
傅立叶相关系数
滤波器
相干干扰
地震资料处理
信噪比
分辨率
Fourier correlation coefficient, coherent noise, seismic data processing, signal-to-noise ratio, resolution
