用优频算子外推改善F-X域滤波性能

英文篇名：Predominant frequency band operator extrapolation to improve noise attenuation in f-x domain
中文刊名：石油地球物理勘探
英文刊名：Oil Geophysical Prospecting
作者：熊定钰 ; 钱忠平 ; 赵波 ; 周亚同 ; 贺振华
英文作者：Xiong Ding-yu1 ; 2 ; Qian Zhong-ping2 ; Zhao Bo2 ; Zhou Ya-tong2 and He Zhen-hua1.1.School of Information Engineering ; Chengdu University of Technology ; Chengdu ; Sichuan ; 610059 ; China ; 2.Research & Development Center ; BGP Inc ; Zhuozhou ; Hebei ; 072751 ; China
中文关键词：F-X域 ; 优势频带 ; 预测算子 ; 信噪比
英文关键词：f-x domain ; predominant frequency band ; prediction operator ; S/N
出版日期：2011-04-15
机构：成都理工大学信息工程学院;东方地球物理公司物探技术研究中心;
年：2011
期：02
出版单位：石油地球物理勘探

摘要

针对常规F-X域预测方法的效果严重依赖于原始地震数据信噪比的缺点,本文提出一种优势频带算子外推噪声衰减方法。这种方法充分利用了相邻频带预测算子之间的关系,用高信噪比频带的预测算子去预测低信噪比频带的预测算子,使低信噪比频带预测算子具有可靠精度,从而保护了低信噪比频带中的有效高频信号。
Usually f-x prediction filtering seriously depends on S/N of original seismic data.A predominant frequency-band operator extrapolation for noise attenuation improvement in f-x domain is proposed in the work.In order to get dependable prediction operators of the lower S/N frequency band,the method,utilizing the relation of close frequency band prediction operators,predicts the lower S/N frequency band by prediction operators of high S/N frequency band.In this instance,the precision of the prediction operator in the lower S/N frequency band is guaranteed.Consequently,high frequency effective signal in the lower S/N frequency band is protected.

引文

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