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Method for determining underwater three-dimensional acoustic three-dimensional array of wave glider

A determination method and a three-dimensional array technology, applied to vibration measurement in fluids, measuring vibrations, measuring devices, etc., can solve the problems of fixed observation sites, large consumption of manpower/material resources, and large volume, so as to reduce labor costs and improve efficiency , small size effect

Inactive Publication Date: 2020-08-07
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a method for determining an underwater three-dimensional acoustic stereo array of a wave glider in order to solve the problems of large volume, large consumption of manpower / material resources and fixed observation location in the existing ocean acoustic information acquisition system

Method used

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  • Method for determining underwater three-dimensional acoustic three-dimensional array of wave glider
  • Method for determining underwater three-dimensional acoustic three-dimensional array of wave glider
  • Method for determining underwater three-dimensional acoustic three-dimensional array of wave glider

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specific Embodiment approach 1

[0020] Specific implementation mode 1: In this implementation mode, a method for determining an underwater three-dimensional acoustic stereo array of a wave glider is as follows:

[0021] The underwater three-dimensional acoustic stereo array is composed of hydrophone stereo array, underwater drag body, wing plate and attitude sensor;

[0022] The three-dimensional array of hydrophones is composed of six hydrophones, and the six hydrophones are in groups of two, respectively installed in the X, Y, and Z directions of the underwater towing body, and the two hydrophones in the X direction Obtain X-dimension sound field information, two hydrophones in Y direction obtain Y-dimension sound field information, two hydrophones in Z direction obtain Z-dimension sound field information, X, Y, Z three directions are orthogonal, three sets of hydrophones Synchronously obtain X, Y, Z three-dimensional spatial information of the ocean sound field, that is, two hydrophones in each direction ...

specific Embodiment approach 2

[0027] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the two hydrophone connections on the X dimension and the two hydrophone connections on the Y dimension are respectively connected to the center of the underwater towing body. The axis is at an angle of 45°.

[0028] Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0029] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the two hydrophones in the X dimension are installed on the central axis of the underwater towing body, and the two hydrophones in the Y dimension are installed on the underwater towing body. On the vertical line of the central axis of the body, under the condition that the spatial distance between the two hydrophones in the X dimension and the two hydrophones in the Y dimension are equal, the width and length of the underwater three-dimensional acoustic stereo array are reduced to times.

[0030] Compared with the two hydrophones in the X dimension, which are installed on the central axis of the underwater tow body, there is no need to install hydrophones on the underwater tow body and reserve an unobstructed space for the hydrophone, which reduces the size of the underwater tow body At the same time, it also reduces the influence of the underwater towing body on the sensitivity, directivity...

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Abstract

The invention discloses a method for determining the underwater three-dimensional acoustic three-dimensional array of a wave glider, and relates to a method for determining the underwater three-dimensional acoustic three-dimensional array. The objective of the invention is to solve the problems of large size, large manpower / material resource consumption, fixed observation place and the like of anexisting marine acoustic information acquisition system. According to the process of the method, the underwater three-dimensional acoustic three-dimensional array is composed of a hydrophone three-dimensional array, an underwater towed body, wing plates and an attitude sensor; the hydrophone three-dimensional array is composed of six hydrophones, every two hydrophones form a group, and the three groups of hydrophones are installed in the X direction, Y direction and Z direction of the underwater towed body respectively; six wing plates are installed on the underwater towed body; the hydrophones are installed at the ends of the wing plates respectively; the attitude sensor is installed in the underwater towed body to obtain the magnetic heading of the underwater three-dimensional acoustic three-dimensional array; the real azimuth angles and pitch angles of different acoustic signals in the ocean relative to the underwater three-dimensional acoustic three-dimensional array are estimated.The method of the invention is applied to the field of marine environment detection equipment.

Description

technical field [0001] The invention relates to the field of marine environment detection equipment, in particular to a method for determining an underwater three-dimensional acoustic stereo array. Background technique [0002] Marine acoustic information is an important parameter of the marine environment, including marine environmental background noise, marine biological acoustic signals, and ship acoustic signals. Various marine environmental parameters can be obtained through marine acoustic information, and it is also an important parameter that affects sonar performance. . [0003] The underwater three-dimensional array of the wave glider has the characteristics of small size, low cost, and the ability to independently and synchronously obtain X, Y, and Z three-dimensional sound field information in the ocean acoustic field. The wave glider and other small motorized platforms are used to tow to obtain ocean acoustic information. The underwater three-dimensional acoust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C1/00G01H3/00
CPCG01C1/00G01H3/00
Inventor 吕云飞刘鑫兰华林师俊杰滕婷婷梅继丹
Owner HARBIN ENG UNIV
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