Oceanographic measurement system

Details Oceanographic measurement system Oceanographic measurement system

1981-12-23

1984-05-01

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Underwater system

73170A, 367118, 367134, 367117, G01S 1588, G01S 1596

Patent

active

044465424

ABSTRACT:
An acoustic ocean measuring system is disclosed which uses measurements of sound intensity to locate and measure ocean anomalies. Several free-floating sound pulse emitting floats are placed in the ocean area to be measured; the position of the floats can be determined by well-known ranging techniques. Several hydrophones are positioned either in the immediate area or at distant locations to receive the sound pulses. A fixed number of received sound signals are electronically processed to obtain peak intensity signals. A fixed set of peak signals received from the floats over a fixed period of time are used to generate a trend line which can be used to predict the peak intensity received from the position data. The actual received intensity measurements are compared to the predicted measurements; substantial deviations from the predicted values are used to locate and measure parameters of ocean anomalies.

REFERENCES:
patent: 4114136 (1978-09-01), D'Albora
patent: 4308749 (1982-01-01), Clavelloux et al.
Tate, J. Acous. Soc. Amer., vol. 53, No. 3, Mar. 1973, pp. 905-909.

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