Phase-shift- and phase-filtering-based surface-wave suppression method
Wang De-Ying1 and Ling Yun1
This work was supported by the National Natural Science Foundation of China (No. 41274124) and the National Science and Technology Major Project (No. 2016ZX05014-001-008HZ).
Abstract Aliased surface waves are caused by large-space sampling intervals in three-dimensional seismic exploration and most current surface-wave suppression methods fail to account for. Thus, we propose a surface-wave suppression method using phase-shift and phase-filtering, named the PSPF method, in which linear phase-shift is performed to solve the coupled problem of surface and reflected waves in the FKXKY domain and then used phase and FKXKY filtering to attenuate the surface-wave energy. Processing of model and field data suggest that the PSPF method can reduce the surface-wave energy while maintaining the low-frequency information of the reflected waves.
This work was supported by the National Natural Science Foundation of China (No. 41274124) and the National Science and Technology Major Project (No. 2016ZX05014-001-008HZ).
Cite this article:
Xu Dong,Hu Xiang-Yun,Dan Chun-Ling et al. Phase-shift- and phase-filtering-based surface-wave suppression method[J]. APPLIED GEOPHYSICS, 2016, 13(4): 614-620.
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