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《Global Geology》 2012-02
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Wave filed separation of fast-slow shear waves by Pearson correlation coefficient method

WANG Kai,FENG Xuan,LIU Cai College of Geo-exploration Science and Technology,Jilin University,Changchun 130026,China  
Shear-wave splitting is an important characteristic of anisotropic media.Generally,when S or P-SV waves reach to the ground through anisotropic media,the seismic record received by x component and y component of three-component detector contains fast wave and slow wave simultaneously.Separating fast wave and slow wave and then calculating the anisotropic parameters of media are an important step in multi-component data processing.The authors introduce the Pearson correlation coefficients into multi-component seismic exploration and propose the Pearson correlation coefficients to detect the rotation angle and then separate the fast wave and slow wave.Compared with the traditional cross-correlation method,the Pearson correlation coefficient method is better in accuracy,noise immunity and computational efficiency.
【Fund】: 吉林大学科学前沿与交叉学科创新项目“多波多分量地震技术识别裂缝性油气藏属性研究”(200810011)资助
【CateGory Index】: P631.4
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