Application of phase locking for separation of upgoing and downgoing waves in VSP data
Hashemi, H., 2020. Application of phase locking for separation of upgoing and downgoing waves in VSP data. Journal of Seismic Exploration, 29: 299-304. The theories of dip steering after phase locking is disccused. This method has applicability in the seismic event separation that is primarily introduced for seismic automatic horizon picking in the interpretation phase. In this paper, primarily a deep literature review is done on the methods of VSP wavefield separation and thereafter a method based on following local dips for similar phases is presented. The output is two ensembles for upgoing and downgoing wavefiels. In these two ensembles, the wavefields are separeted and also the issue of cross dip in some samples is considered.
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