Method for estimating the residual source of receiver coordinate

Details Method for estimating the residual source of receiver coordinate Method for estimating the residual source of receiver coordinate

1992-02-25

1992-08-04

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 40, G01V 136

Patent

active

051365502

ABSTRACT:
This is a method for optimizing the coordinates of transducer stations involved in a common mid point gather. Relative reflection-data misalignments between the traces of the gather are attributed to errors in the reported offsets between transducers. Each trace of the gather is iteratively cross-correlated with a pilot trace, using a different offset increment for each iteration. The offset increment that maximizes the correlation coefficient is accepted as the most likely offset residual appropriate to the trace in question. The offset residual is applied to the nominal offset to provide a range measurement vector. The intersection of the range measurement vectors from a plurality of interdependent common mid-point gathers is the best estimate of the transducer location.

REFERENCES:
patent: 4446538 (1984-05-01), Zachariadis
patent: 4577298 (1986-03-01), Hinckley
patent: 4613960 (1986-09-01), Hinckley et al.
patent: 4641287 (1987-02-01), Neeley
Genrich, J. F. and Minster, J. B., Ship Navigation for Geophysical Application Using Kalman-filtered GPS Fixes, Geophysics, vol. 56, No. 12, Dec. 1991.
Encyclopedia Dictionary of Exploration Geophysics, pp. 316-319.

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