HYDROACOUSTIC SYSTEM Russian patent published in 2014 - IPC G01S3/80 

FIELD: physics.

SUBSTANCE: system includes main and additional noise direction-finding paths, a hydroacoustic signal detection path, a sonar path, a communication and recognition path, a mine and navigation obstacle detection path, a central computing system, a display, recording, documenting and control system and a common bus. All radiating antennae of the sonar path are electronically controlled on both the number of directional pattern beams and the width and direction thereof. The main noise direction-finding path comprises a main front receiving antenna and a first preprocessing device. The hydroacoustic signal detection path comprises three receiving antennae and a second preprocessing device. The sonar path comprises three electrically controlled antennae and a first generator device. The communication and recognition path comprises two radiating antennae and a second generator device. The mine and navigation obstacle detection path comprises a transceiving antenna, a "receive-transmit" switch, a third generator device and a third preprocessing device. The additional noise direction-finding path comprises a flexible extended trailing antenna, a conducting rope, a current collector and a fourth preprocessing device.

EFFECT: high stealthiness of operation of the hydroacoustic system and target detection range in sonar mode.

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