NASA NTRS · 19660000314
System locates randomly placed remote objects
Abstract
System to locate objects submerged underwater uses active/passive sonar techniques in which a transmitter is attached to the object to be recovered and a receiver is used for search. The system is rugged, has a long term operating life, and furnishes a precise bearing on the object.
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Lovelady, R. W., Mc Fall, J. C., Jr.. 1966-07-01. System locates randomly placed remote objects. https://ntrs.nasa.gov/citations/19660000314
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