Underwater detection system

Details Underwater detection system Underwater detection system

1986-03-10

1987-06-09

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

367110, 367113, G01S 1542, G01S 762

Patent

active

046725890

ABSTRACT:
An underwater detection system which has a transmitting and receiving unit for radiating an ultrasonic wave pulse into the water within a narrow sector and receiving echo signals by a plurality of reception beams, and turns the transmitting and receiving unit by a predetermined angle to search another narrow sector each time the search within the narrow sector is completed, thereby searching the water within a wide angular range.

REFERENCES:
patent: 2759783 (1956-08-01), Ross
patent: 3012244 (1961-12-01), Langenwalter et al.
patent: 3129402 (1964-04-01), Henne
patent: 3967233 (1976-06-01), Maguer et al.
patent: 4045766 (1977-08-01), Iada
patent: 4276618 (1981-06-01), Green
patent: 4375671 (1983-03-01), Engle
Brochure entitled "Simrad SM 600, Multibeam Sonar", Radio Maritine Co., 6 pages, no date.
Bodholt, Con. Electronics for Ocean Technology, pp. 283-290, Sep. 1981.
Duck et al, Con. Electronics for Ocean Technology, pp. 215-226, Sep. 1981.

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