Signal and noise separation method for pre-stack seismic data in wave atomic domain based on coefficient correlation threshold
Yang Ning1, He Zhen-hua2, Huang De-ji2
1. State Key Lab of Reservoir Geology and Development Engineering,Chengdu University of Technology,Chengdu City,Sichuan Province,610059,China;
2. Institute of Information Engineering,Chengdu University of Technology,Chengdu City,Sichuan Province,610059,China
Abstract：The signal-noise separation method for pre-stack seismic data in the wave atomic domain was proposed in this paper,at first the multi-scale decomposition was conducted in the wave atomic domain,then based on the energy concentration principle the coefficient correlation for the different scales were utilized to separate effective signal and the noise.The results of numerical simulation and field data processing indicate that the pre-stack seismic data signal-noise separation method which is based on the coefficient correlation threshold in the wave atomic domain could effectively suppresses the random noise,meanwhile it also could restrain some coherent noise.It can be seen that the signal to noise ratio for the processed seismic sections was greatly raised and the reflection events were more continuous,providing high signal to noise sections for the subsequent processing.
杨宁, 贺振华, 黄德济. 基于系数相关性阈值的波原子域叠前地震资料信噪分离方法[J]. 石油地球物理勘探, 2011, 46(1): 53-57.
Yang Ning, He Zhen-hua, Huang De-ji. Signal and noise separation method for pre-stack seismic data in wave atomic domain based on coefficient correlation threshold. OGP, 2011, 46(1): 53-57.
