Passive acoustic aquatic animal finder apparatus and method

Details Passive acoustic aquatic animal finder apparatus and method Passive acoustic aquatic animal finder apparatus and method

G - Physics

01

S

G01S 15/96 (2006.01) G01S 3/802 (2006.01) G01S 3/86 (2006.01) G01S 11/14 (2006.01) G01V 1/00 (2006.01)

Patent

CA 2086611

2086611 9200530 PCTABS00010 Aquatic animal finder apparatus and method include one or more passive transducers (10) for converting sounds, including bio-soundwaves from a living aquatic animals source (TF) traveling in a body of water, to electrical signals, the transducer is caused to scan about a selected axis (10S), the electrical signals are filtered to eliminate all man-made signals of a periodic character and pass bio-sound electrical signals. A discriminator (32-2) is connected to the filter (31-2) and programmed to pass a predetermined pattern of the bio-sound wave electrical signals constituting a sonic profile, signature or imprint of a selected aquatic animal. The direction of a selected aquatic animal is detected and presented to the user and range, depth and direction of movement of the selected aquatic animal are determined solely from the bio-sound signals received from the aquatic animal.

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