Computationally efficient weighting and vertical stacking method

Details Computationally efficient weighting and vertical stacking method Computationally efficient weighting and vertical stacking method

1982-12-29

1985-12-24

Jordan, Charles T.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 62, 367 63, 364421, G01V 100

Patent

active

045610746

ABSTRACT:
This disclosure relates to improved methods and apparatus for vertically stacking seismic-trace data collected by a digital field recorder during seismic prospecting utilizing plural initiations of a low energy surface seismic source. Seismic-trace data generated by consecutive seismic source initiations and acquired at a common detector location is weighted and summed together, and the sum is normalized prior to being recorded. Accordingly, the signal-to-noise ratio of the seismic-trace data is improved. The methods and apparatus by which the weighting values are calculated and applied provides computational simplifications which reduce the program storage requirements and increase the computation speed of the microcomputer circuit preferably used to perform the calculations and leads to savings in hardware power, size, and complexity.

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