FIELD: acoustic instrumentation engineering. SUBSTANCE: underwater acoustic device has pressure transducer 1, vertically oriented pressure transducer 2, integrator 3, amplifier 4, adder 5, horizontally oriented pressure transducer 6, square-law detector 7 and subtracter 8. EFFECT: enhanced noise immunity. 2 dwg
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Authors
Dates
1994-01-30—Published
1991-05-05—Filed