Process for cancelling stationary sinusoidal noise in seismic da

Details Process for cancelling stationary sinusoidal noise in seismic da Process for cancelling stationary sinusoidal noise in seismic da

1990-07-09

1991-09-24

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 43, 364421, 36472401, G01V 136

Patent

active

050519638

ABSTRACT:
An improved method for cancelling a stationary sinusoid corrupting a data trace is described. The frequency of the corrupting sinusoid is determined precisely and a Wiener-Levinson least squares filter is designed, using a reference sinusoid at precisely the determined frequency and correlated with the corrupted data trace. The filter is applied to the reference trace yielding a noise estimate which can then be subtracted from the data trace.

REFERENCES:
patent: 4397006 (1983-08-01), Galbraith, Jr.
patent: 4750156 (1988-06-01), Abrams et al.
patent: 4853903 (1989-08-01), Linville, Jr. et al.

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