Communications: electrical – Selective – Path selection
Patent
1976-04-28
1977-01-18
Farley, Richard A.
Communications: electrical
Selective
Path selection
340 6R, 340 3T, G01S 380
Patent
active
040042650
ABSTRACT:
A hydrophone array system comprising a plurality of hydrophones fastened to a cable is deployed beneath the sea in a substantially horizontal straight line. A small powered thruster fastened to one end of the cable urges it in a first direction and this urging is resisted by a member, such as a drogue or an anchored subsurface float, fastened to the other end of the cable. Individual signals from each of the hydrophones are conducted to the surface where they are processed and transmitted by a radio link to a nearby aircraft or surface vessel. Beam forming and analysis is performed aboard the aircraft or surface vessel.
REFERENCES:
patent: 2422337 (1947-06-01), Chilowsky
patent: 2941492 (1960-06-01), Wilcoxon
patent: 3191202 (1965-06-01), Handler
patent: 3543228 (1970-11-01), Farmer et al.
patent: 3800271 (1974-03-01), Stillman, Jr.
patent: 3944964 (1976-03-01), Loeser et al.
Ballard Samuel S.
Farmer Everett W.
Saunders Roger I.
Woodruff Thomas E.
Etlinger Louis
Farley Richard A.
Hunter William L.
Sanders Associates Inc.
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