多尺度时变地震信号反褶积  

Multiscale Time-Varying Seismic Signal Deconvolution

作　　者：章珂[1] 张学工[1] 刘贵忠[2] 武栓虎 

机构地区：[1]清华大学自动化系 [2]西安交通大学电信学院信息工程研究所 [3]南阳油田计算中心

出　　处：《信号处理》1998年第4期296-303,共8页Journal of Signal Processing

摘　　要：本文针对石油地震勘探中地震信号的时变性，提出一个新的时变地震信号反褶积方法。在分析地层时变滤波特性的基础上，构造多尺度地震子波。分别用每一个尺度的地震子波作确定反褶积，并用基于信息熵准则构造的检测函数综合多尺度反褶积结果。实验表明本文提出的方法具有很好的效果。In this paper a new algorithm of time-varying seismic signal deconvolution is proposed. From the analysis of time-varying filtering characteristic oof stratums, a multiscale model of seismic Wavelet is presented.Based on this model the multiscale seismic Wavelets are constructed, and using the each of them the determining deconvolution are made respectively. The final results of multiscale time-varying seismic deconvolutionn are obtained throuth synthesizing the results of the determining deconvolution using a detect function, Which is constructed with the critreion of information entropy. Experiment results are included to Verify the advantages of proposed new algorithm.

关 键 词：反褶积 时变地震信号 石油 地震勘探 

分 类 号：P618.130.8[天文地球—矿床学] P631.443[天文地球—地质学]