Seismic data enhancement method and apparatus

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type

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367 60, 367 66, 364574, G01V 100

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active

045876428

ABSTRACT:
A method of enhancing the signal to noise ratio of seismic data includes the steps of repeatedly obtaining, from at least one array of seismic detectors, analog signals representative of sensed vibrations or pressure waves. Each analog signal is converted to discrete digital values on a time correlation basis until a predetermined quantity of analog signals have been converted. In each time correlation, the two most positive digital values and the two most negative digital values are removed. The remaining values for each time correlation are averaged so as to provide a digital representation of the analog signals.

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Trimble, Charles R., What is Signal Averaging? Hewlett-Packard, Apr. 1968, pp. 1-7.

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