Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1981-03-23
1983-01-04
Wilbur, Maynard R.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
455139, 455209, 367128, 343100SA, 329122, G01V 100
Patent
active
043675425
ABSTRACT:
A signal having the form cos (.OMEGA.t+.phi.) where .OMEGA. is the frequency of the signal and .phi. is a phase angle which may be zero is phase shifted to improve the results of the summation of such a signal with other signals having the same form but different phase angles.
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Harris Bruce
Phillips Petroleum Company
Wilbur Maynard R.
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