Method for attenuating coherent noise in marine seismic data

Details Method for attenuating coherent noise in marine seismic data Method for attenuating coherent noise in marine seismic data

1994-05-05

1995-09-05

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 21, 367 24, 367 73, 364421, G01V 136, G01V 138

Patent

active

054485312

ABSTRACT:
A method for adaptively creating a filter for removing coherent environmental noise from a multitrace digitized seismic recording requires the presence, on the recording, of a limited sample of pure noise that is uncontaminated by desired signal. The pure noise sample is used to discover the location of the noise source and from that discovery, to extrapolate and reconstruct the characteristics of the noise envelope as it would appear on the seismic recording. The reconstructed noise envelope is used as a noise reference for input to a conventional iterative adaptive noise cancellation filter loop. For stability, the loop gain is minimized by temporally and spatially averaging the filter coefficients for each sample interval.

REFERENCES:
patent: 4630246 (1986-12-01), Fogler
patent: 4750156 (1988-06-01), Abrams et al.
patent: 4890264 (1989-12-01), Crews
patent: 4935904 (1990-06-01), Chambers et al.
patent: 4964087 (1990-10-01), Widrow
patent: 5050226 (1991-09-01), Collet-Billon
patent: 5237538 (1993-08-01), Linville et al.
patent: 5251183 (1993-10-01), McConnell
patent: 5365492 (1994-11-01), Dragoset
patent: 5400299 (1995-03-01), Trantham
Linville et al, Geophysics, vol. 60, #1, pp. 191-203, Jan. 2, 1995; Abst. only herewith.

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