利用LOG算子和改进相干算法提高地震资料分辨率  

SEISMIC RESOLUTION IMPROVEMENT BY MEANS OF LOG OPERATOR AND MODIFIED COHERENCE ALGORITHM

作　　者：杨立强[1] 郝天珧[1] 宋海斌[1] 

机构地区：[1]中国科学院地质与地球物理研究所

出　　处：《物探与化探》2005年第4期351-354,共4页Geophysical and Geochemical Exploration

基　　金：中国科学院知识创新重大项目(KZCX1-SW-18-06)资助

摘　　要：利用LOG算子和改进相干算法相结合可提高地震资料分辨率。模型数据与实际数据的应用效果证明,该方法同其他方法相比,具有较强的信噪分离作用,能有效提高地震资料分辨率。In seismic exploration, the random noise is an interference wave with a broad band which deteriorates the signal-to-noise ratio. In order to enhance the signal/noise ratio and resolution of the seismic section and to distinguish and pursue the seismic event more easily, the authors suggest in this paper the utilization of the LOG operator and the modified coherence algorithm. Trial computations of a theoretical record and an actual field record show that the method is obviously effective in the separation of signal from noise.

关 键 词：LOG算子 随机噪声 地震信号 分辨率 相干算法 

分 类 号：P631.4[天文地球—地质矿产勘探]