Communications: electrical – Selective – Having indication or alarm
Patent
1976-03-22
1977-12-20
Moskowitz, Nelson
Communications: electrical
Selective
Having indication or alarm
181110, 181111, 181112, 340 9, 340 155CP, G01V 138, G01V 113, G01V 116
Patent
active
040644790
ABSTRACT:
A system for marine seismic exploration has arrays of sources and receivers which discriminate against horizontal traveling source-generated noise. Directive arrays of sources or receivers have a length which is longer than the wavelength of the lowest frequency of the seismic pulse. The spacing between the elements in the array is less than the wavelength of the highest characteristic frequency in the seismic pulse.
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patent: 3852708 (1974-12-01), Doolittle et al.
Tucker, "Same Aspects of the Design of Strip Arrays," 1956, pp. 403-411, Acustica, vol. 6.
Tucker, "The Signal/Noise Performance of Electro-Acoustic Strip Arrays", 1958, pp. 53-62, Acustic, vol. 8.
Heaps, "General Theory for the Synthesis of Hydrophone Arrays," 3/60, pp. 356-363, Jour. Acoust. Soc. of Amer., vol. 32, No. 3.
Pritchard, "Maximum Directivity Index in a Linear Point Array," 11/54, pp. 1034-1039, Jour. Acoust. Soc. of Amer., vol. 26, No. 6.
Hager Jr. George W.
Huggett C. A.
Mobil Oil Corporation
Moskowitz Nelson
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