高阶谱混合方法地震子波估计及处理  

A hybrid high-order spectrum method for Seismic wavelet estimation and processin

作　　者：李大卫[1] 尹成[1] 熊晓军[1] 马洪艳[1] 

机构地区：[1]西南石油学院,成都610500

出　　处：《地球物理学进展》2005年第1期29-33,共5页Progress in Geophysics

基　　金：国家高技术研究发展计划(863计划)(编号:2003AA602110-5);四川省应用基础研究项目(编号:01 GY051-31)资助.

摘　　要：凭借高阶累积量对噪声的不敏感性,依据地震记录高阶谱中包含的子波相位、幅值信息,提出了基于双谱和三谱混合的子波恢复方法,并对理论合成记录进行子波估计及处理模拟试验,其结果论证了该方法的可行性.同时,用本文介绍的方法对野外采集的地震资料进行处理后,其分辨率明显提高,说明了高阶谱技术在资料处理方面有相当大的潜力.t Wavelet estimation method that based on hybrid high-order spectrum is brought forward, depending on high-order cumulant little sensitivity towards noises, according to wavelet's phase and magnitude information that contained in high-order statistics of seismic signal, and the feasibility of the method is demonstrated by testing wavelet estimation and processing simulation with computer. At the same time, field data resolving power improved by processing with the method that introduced in the paper, so it can be said that high-order spectrum technique possess much potential on aspect of seismic data processing.

关 键 词：高阶谱 高阶累积量 混合相位子波 

分 类 号：P315[天文地球—地震学] P631[天文地球—固体地球物理学]