多项式拟合技术在强噪声地震资料中的应用研究  

Research on Application of Polynomial Fitting Technique in Highly noisy Seismic Data

作　　者：钟伟[1] 杨宝俊[1] 张智[1] 

机构地区：[1]吉林大学地球探测科学与技术学院,长春130026

出　　处：《地球物理学进展》2006年第1期184-189,共6页Progress in Geophysics

基　　金：中国石油化工股份有限公司"十五"重点科技攻关项目(P0000202)资助

摘　　要：获得高分辨率的地震信号是决定地震勘探在油气田等资源开发中能否发挥更大作用的关键,所以说地震信号的高分辨率是地震勘探所追求的重要目标,而提高数据信噪比才能真正提高地震资料的分辨率.本文通过对多项式拟合技术去噪的研究,以此提高地震数据信噪比.实际数据的处理结果表明,该方法能减少对振幅的畸变,同时可处理非水平的和弯曲的同相轴,可很好地提高地震资料的分辨率.It is the key factor to obtain the seismic signal with high resolution, and it also decides if the seismic prospecting can exert more effective action on petroleum exploitation. The high resolution of seismic data is an important goal for seismic exploration. Improving Signal Noise Ratio （SNR） can verily advance the resolution of seismic data. In this paper, research on denoising of polynomial fitting technique to improve SNR of seismic data. The processed result of the actual data indicates that this method can reduce the distortion of amplitude, and it can deal with non-horizontal and flexural seismic event at the same time, it also improves the resolution of seismic data commendably.

关 键 词：地震信号 多项式拟舍 去噪 分辨率 

分 类 号：P631[天文地球—地质矿产勘探]