FIELD: fishing industry, possible use on ships of fishing and scientific research fleet for finding and detecting fish and other catching subjects.
SUBSTANCE: device has underwater acoustic emitting-receiving system and above-water electronic system for processing, storing, representing and displaying received acoustic information, while underwater acoustic receiving-emitting system consists of n of supersonic vertical probing indicators, acoustic antennas of each one of aforementioned indicators are made two or three-sectioned, each one of supersonic vertical probing indicators is provided aside from main one by two additional channels for receiving reflected signals, aforementioned above-water electronic system contains launching circuit, block for separating sonic signals from fish, block for selecting sonic signals from one and same fish and block for storing, processing, representing and displaying data.
EFFECT: increased efficiency of detection of fish and other catching objects.
4 dwg
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