Noise suppression during seismic exploration

Details Noise suppression during seismic exploration Noise suppression during seismic exploration

G - Physics

01

V

349/17

G01V 1/36 (2006.01)

Patent

CA 1260131

TITLE: NOISE SUPPRESSION DURING SEISMIC EXPLORATION ABSTRACT The system for suppressing an ambient noise signal which contaminates a desired signal includes a noise pickup detector for detecting the ambient noise signal. A noise discriminator processes the detected noise signal into noise data. A reference noise generator converts the noise data into a reference noise signal. The noise generator automatically adjusts the reference noise signal to correspond with changes in the noise signal as it is being detected. A filter filters the reference noise signal into an error signal which is adapted to remove the noise signal from the contaminated signal. A cross-correlator cross-correlates the contaminated signal with the reference noise signal and adjusts the filter to produce the required error signal.

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