Method for attenuating correlated noise in controlled source...

Details Method for attenuating correlated noise in controlled source... Method for attenuating correlated noise in controlled source...

G - Physics

01

V

G01V 3/38 (2006.01)

Patent

CA 2676549

A method for attenuating correlated noise in transient electromagnetic survey signals includes producing, from a transient electromagnetic signal measured by a first receiver, an estimate of the Earth response and an estimate of the correlated noise from a portion of the signal occurring before onset of an Earth response, and/or after the Earth response has substantially decayed. An estimate of the correlated noise is determined over the entire measured signal from the first receiver using the estimate of the Earth response. The noise estimate from the entire signal and the portion estimate are used to estimate correlated noise in transient signals from at least a second receiver.

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