Intelligent shipborne underwater acoustic positioning device, system and method

Abstract

The invention discloses an intelligent shipborne underwater acoustic positioning device, system and method. The positioning system comprises a shipborne short array (1), signal processing equipment (4) and an underwater beacon (3), wherein the shipborne short array (1) is fixedly connected with a working mother ship (2) through a rigid connecting rod (3), a transmitting transducer (11) and a transmitting transducer (31) are arranged in the center of the bottom of the shipborne short array (1) and at the water inlet end of the rigid connecting rod (3) respectively, and a corresponding GPS antenna (111) and a corresponding GPS antenna (311) are arranged; the signal processing equipment (4) is arranged in a data processing cabin (41) on the working mother ship (2); the underwater beacon (3) is arranged on an underwater target (6); synchronous / asynchronous underwater acoustic pulse signals emitted by the underwater beacons are received through the short array, positioning information is drawn, displayed and continuously positioned after the synchronous / asynchronous underwater acoustic pulse signals are resolved by the signal processing equipment, navigation trajectory tracking of underwater targets can be realized, and automatic calibration and intelligent positioning tracking without manual implementation are realized.

Description

technical field [0001] The invention belongs to the technical field of underwater acoustic positioning and tracking, and specifically relates to an intelligent shipborne underwater acoustic positioning device, system and positioning method, which can directly perform positioning, tracking and navigation of underwater targets after the system is installed, without conventional Manual calibration before testing. Background technique [0002] The current shipborne hydroacoustic positioning and tracking systems are mostly ultra-short baseline and short baseline systems. Usually, the principle of underwater acoustic positioning is used to obtain the position information of the underwater target relative to the ship-borne array in real time, and then combined with the current GPS / Beidou positioning information of the ship and the attitude of the ship-borne array, the coordinate conversion is performed to obtain the position of the underwater target. Absolute coordinate informatio...

AI Technical Summary

Problems solved by technology

[0004] It can be seen that no matter whether the conventional underwater acoustic positioning system adopts dynamic or static methods, there are shortcomings such as large calibration workload, poor economy, and long preparation time.

Although a variety of methods have been researched and tested in China, and the implementation method of static calibration has been proposed on the basis of dynamic calibration, all of them require manual running of the ship or static hoisting of sound sources for comparison and calibration

Especially in engineering applications that require repeated disassembly and assembly of the ship-borne array, adaptive calibration is required after each installation of the ship-borne array, the test efficiency is low, and the user cost is high

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