Variable focus sonar with curved array

Details Variable focus sonar with curved array Variable focus sonar with curved array

1982-04-22

1984-07-17

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

367123, 367138, G01S 752

Patent

active

044609876

ABSTRACT:
Variable focus in a sonar system of the time delay beamformer type using a onvexly curved electroacoustic array is achieved by changing the operating frequency.

REFERENCES:
patent: 2875355 (1959-02-01), Petermann
patent: 3086195 (1963-04-01), Halliday
patent: 3090030 (1963-04-01), Schuck
patent: 3474402 (1969-10-01), Cook et al.
patent: 3585579 (1969-07-01), Dorr
patent: 3914731 (1975-10-01), Warner et al.
patent: 4152678 (1979-05-01), Shott et al.
patent: 4187556 (1980-02-01), Jones
patent: 4241611 (1980-12-01), Specht
patent: 4271490 (1981-06-01), Minohara et al.
Stokes & Pruitt, Conference: Eascon '78, Arlington, VA., 9/78, pp. 755-760.

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