Pearson 相关系数法快慢横波波场分离

横波分裂是各向异性介质的重要特征，当横波或转换波穿过各向异性介质到达地面时，地面三分量检波器的x 分量和y 分量接收到的地震记录中都会同时存在快横波和慢横波。将快横波和慢横波进行分离，进而计算介质的各向异性参数是多分量数据处理中重要的一步。将数学中的Pearson 相关系数引入到多分量地震勘探中，提出了Pearson 相关系数法进行旋转角度识别，进而分离快、慢横波波场。相比于传统的互相关法，Pearson 相关系数法从精度、抗噪性能和计算效率上都有提高。

Wave filed separation of fast-slow shear waves by Pearson correlation coefficient method

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.