Reducing aliasing artifacts in seismic data processing using...

Details Reducing aliasing artifacts in seismic data processing using... Reducing aliasing artifacts in seismic data processing using...

G - Physics

01

V

G01V 1/36 (2006.01) G01V 1/32 (2006.01) G01V 1/38 (2006.01)

Patent

CA 2298454

Marine seismic data sets are generally under-sampled spatially because of the relatively long listening times required in deep water. It is customary to use very long spreads in the field thereby enhancing aliasing and interference from coherent noise. A seismic-signal data processing method is proposed that applies a combination of a forward parabolic Radon transform and a linear Radon transform to the data, followed by a further transform to a three-dimensional frequency domain. In this domain, a deterministic operator is applied to the data to sharpen the Radon-domain response thereof. The data are then scavenged of noise in the Radon domain and inversely transformed back into the time-space domain.

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