基于峭度极大准则的线性相位移校正方法  

Linear phase shift correction method based on maximum kurtosis criteria

作　　者：袁子龙[1] 张洪江[1] 李海山[1] 刘洪林[1] 

机构地区：[1]东北石油大学地球科学学院,黑龙江大庆163318

出　　处：《大庆石油学院学报》2010年第6期23-25,31,共4页Journal of Daqing Petroleum Institute

基　　金：黑龙江省自然科学基金项目(E0317)

摘　　要：地震记录的高阶统计量包含子波的相位信息,因此利用地震记录的高阶统计量提取地震子波的方法得到了迅速发展.以褶积理论为基础的地震记录,其子波的线性相位信息已经丢失,使得估计子波相对于真实子波或多或少存在着一定的线性相位移动,给提取子波的应用带来了问题.提出一种以峭度值极大为准则的线性相位校正方法,验证该方法的有效性,并给出该方法的实现流程.The higher-order statistics of seismic records contain the phase information of wavelet,so the method for extracting seismic wavelet by use of higher order statistics of seismic records has been developed rapidly.However,the seismic records based on the convolution theory has lost the linear phase information of wavelet.Consequently,relative to the original wavelet,the seismic wavelet extracted by use of higher-order statistics of seismic records will brings about some linear phase shift,which will cause some problems when using the extracted wavelet.In order to deal with this problem,a linear phase shift correction method based on maximum kurtosis criteria is found,the validity of this method is verified,and the implementation process of this method is given.

关 键 词：高阶累积量 三谱 峭度 地震子波 线性相位移校正 

分 类 号：P631.4[天文地球—地质矿产勘探]