Precorrelation filtering

Details Precorrelation filtering Precorrelation filtering

G - Physics

01

V

349/16

G01V 1/28 (2006.01)

Patent

CA 1153457

ABSTRACT A time variant filter system is employed for removing spurious noise content from a received seismic data signal. The filter passband tracks delayed versions of the pilot signal of a vibrator seismic source. The resulting recorded portion of the received seismic signal is thus restricted to a desired time-frequency band (which is expected to contain the significant mapping information) prior to being recorded. The band is made adjustable in order to allow for optimization with respect to the particular geologic region being prospected. 80141ART0061

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