Precorrelation filtering

Details Precorrelation filtering Precorrelation filtering

1983-10-18

1986-05-27

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 49, 343 175, G01V 128

Patent

active

045920311

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.

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patent: 3015086 (1961-12-01), Heintz
patent: 3198281 (1965-08-01), Mifsud
patent: 3281776 (1966-10-01), Ruehle
patent: 3363230 (1968-01-01), Bemrose
patent: 3466652 (1969-09-01), Heyser
patent: 3568142 (1971-03-01), Landrum et al.
patent: 3701091 (1972-10-01), Lenihan
patent: 4363112 (1982-12-01), Widrow
Waters, "Reflection Seismology", 1981, pp. 87-116.

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