Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1994-04-11
1999-05-04
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
367 41, 364421, G01V 128, G01V 136
Patent
active
059011122
ABSTRACT:
Harmonics, which appear with seismic reflection signals and are responsive to actual vibrations of a land-vibrator for petroleum exploration, are effectively utilized in pulse compression techniques by applying a correlation operator (CO) signal representative of the actual vibrations injected into the earth. In the invention, the CO signal may be acquired by detecting the motion of the baseplate of the land vibrator. Signal correlation procedures are then used to define an inverse filter whose output is pulse-like in response to the CO signal, and the reflected signal is applied to the inverse filter to yield a pulse compressed signal including harmonic energy.
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Anstey, N.A., "Correlation Techniques--A Review", Geophysical Prospecting, vol. XII, No. 4, 1964.
Robinson, E.A., et al., "Principals of Digital Wiener Filtering", Geophysical Prospecting, vol. XV, No. 3, Sep. 1967.
Bogatie George E.
Moskowitz Nelson
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