Integrated passive acoustic and active marine aquatic apparatus

Details Integrated passive acoustic and active marine aquatic apparatus Integrated passive acoustic and active marine aquatic apparatus

1991-08-14

1992-12-01

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

By combining or comparing signals

367118, 367 99, G01S 1596

Patent

active

051684730

ABSTRACT:
One or more passive transducers for converting sounds, including bio-soundwaves from a living aquatic animal source traveling in a body of water, to electrical signals, is combined with an active sonar (echo sounding) to form an integrated marine acoustic system. Moreover, a common display can be used and coupled with a satellite (GPS) or loran position locator so that a fishing vessel carrying the apparatus can have its position displayed on an electronically reproduced chart or map of an area along with the fish location, including an indication of the direction of fish movement, and fish species.

REFERENCES:
patent: 3870988 (1975-03-01), Turner

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