Abstract:Affected by complex terrains in the work area,raw seismic data may be incomplete and irregular,and spatial aliasing is serious. When collecting data on uniform spatial grids,spatial aliasing is similar to the real spectra of missing seismic data. However,anti-aliasing reconstruction can't be realized based on Fourier transform and projection onto convex sets (POCS). To make up the missing linear events,first we pick up effective waves by dip-scanning in f-k frequency domain,and then establish a mask function and use it to the convex set projection algorithm to reconstruct the missing data. Numerical simulation has proved that the proposed method can reconstruct missing seismic data while effectively eliminating aliasing.
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