Over-under Deghosting - 1D, 2D or 3D Algorithms in the F, FK or FXY Domains

摘要

For streamer acquisition, the reflection of the up-going wave field at the sea surface (or ghost) contaminates the recordings, and in particular, significantly attenuates the lower frequencies. In order to eliminate the ghost, we may choose to advocate the recording of the wave field at two different depths: the so-called 'Over-Under' technique.