Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Patent
1998-05-20
1999-11-16
Lobo, Ian J.
Communications, electrical: acoustic wave systems and devices
Echo systems
Distance or direction finding
367130, G01S 7521, G01S 1506
Patent
active
059869755
ABSTRACT:
A drag antenna for a sonar system for detecting and/or locating sources of sound in water includes at least two acoustically sensitive lines positioned side-by-side and laterally spaced apart during a trailing operation. The lines are secured to each other at the leading ends and at the trailing ends by respective connecting element in order to lower the production costs for the drag antenna and to achieve a sufficiently constant lateral spacing between the acoustically sensitive lines.
REFERENCES:
patent: 3414874 (1968-12-01), McLoad
patent: 4468760 (1984-08-01), Zalesak et al.
patent: 5835450 (1998-11-01), Russell
Joris Janssen Lok, "17-Ton ALF Heads Dutch Sonar Tests", Mar. 26, 1994, Janes's Defense Weekly, pp. 26 and 31.
Bauer Wilhelm
Brenner Axel
Hoestermann Horst
Licht Joachim
Schmidt-Schierhorn Helmut
Kinberg Robert
Lobo Ian J.
Spencer George H.
STN Atlas Elektronik GmbH
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