压制地震资料中工业电干扰的余弦逼近法的改进及应用  

THE IMPROVEMENT OF COSINE APPROCH METHOD AND ITS APPLICATION TO REMOVE INDUSTRIAL NOISE IN SEISMIC DATA

作　　者：胡伟[1] 吕小伟[2] 

机构地区：[1]长江大学地质系 [2]胜利油田物探研究院,山东东营257022

出　　处：《物探与化探》2005年第6期537-540,共4页Geophysical and Geochemical Exploration

摘　　要：在对实际资料分析的基础上,笔者提出对工业电干扰频率进行精细扫描、标准余弦信号超采样及深层振幅统计等方法对目前常用的余弦逼近法进行改进,理论分析及实际资料的处理结果对比表明了改进后的方法更实用、精度更高。Cosine Approach Method is a new technique for removing 50Hz industrial noise. However, because of the complexity of the real data, the method cannot effectively suppress the industrial noise contained in some real data. Based on a careful analysis of the real data, this paper proposes to adopt refined frequency scanning, super sampling of cosine signal and amplitude statistics of seismic data to improve the precision and practicality. The theoretical analysisand processing result of the real data show that the improved method is more practical and precise.

关 键 词：工业电干扰 余弦逼近法 频率扫描 超采样 

分 类 号：P631.4[天文地球—地质矿产勘探]