Acoustics – Sound location
Patent
1990-12-21
1993-04-06
Eldred, J. Woodrow
Acoustics
Sound location
367118, 367125, 367129, 367135, G01S 380
Patent
active
H00011711
ABSTRACT:
A method is provided for detecting and localizing acoustic sources. Acous signals are transmitted by a sonobuoy and return signals are received. Electrical signals, corresponding to the received return signals, are multiplexed and transmitted. The transmitted signals are received by a receiver which is separated from the transmitter. The receiver applies the received signal to a demultiplexer which is separate from the the receiver. The demultiplexer demultiplexes the applied signals to provide electrical signals to the cardioid beamformer representative of the sonar return signals.
REFERENCES:
patent: 3860928 (1975-01-01), Ehrlich
patent: 3873958 (1975-03-01), Whitehouse
patent: 4170001 (1979-10-01), Townsend
Fillhart Ricky M.
Russo Donato M.
Bechtel James B.
Eldred J. Woodrow
The United States of America as represented by the Secretary of
Tura James V.
Verona Susan E.
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