Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1984-05-24
1987-01-06
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
367 48, 367 41, 364421, G01V 136
Patent
active
046352392
ABSTRACT:
Data points for a sinusoidal waveform are assigned 2 bit values which indicate the state of the amplitude (positive or negative) and the slope of the sinusoidal signal at the particular data point (positive or negative). The 2 bit values for a plurality of sinusoidal waveforms are compared to determine the phase misalignment between the plurality of sinusoidal waveforms.
REFERENCES:
patent: 2897351 (1959-07-01), Melton
patent: 2897477 (1959-07-01), Lindsey
patent: 3289154 (1966-11-01), Cunningham
patent: 3721954 (1973-03-01), Fontanel et al.
patent: 3968427 (1976-07-01), Sharrit
patent: 4157500 (1979-06-01), Nicoli
patent: 4320458 (1982-03-01), Vincent
O'Brien, J. T. et al, "Sign Bit Amplitude Recovery with Applications to Seismic Data", Geophysics, vol. 47, No. 11, (Nov. 1982), pp. 1527-1539.
Coffeen, J. A., Seismic Exploration Fundamentals, Tulsa, Okla., PPC Books, pp. 115-123.
Moskowitz Nelson
Phillips Petroleum Company
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