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High-precision deep-water emission array and multi-element vertical receiving array element positioning system and method

A vertical receiving and positioning system technology, applied in positioning, radio wave measurement system, measuring device, etc., can solve the problem that underwater equipment cannot use accurate position information and elevation information, achieve high positioning accuracy and reduce inversion errors , the effect of deep sea area

Pending Publication Date: 2020-12-29
THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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Problems solved by technology

[0003] Due to the shielding of electromagnetic signals by seawater, underwater equipment cannot use equipment such as GPS to obtain accurate location information and elevation information for equipment in real time

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  • High-precision deep-water emission array and multi-element vertical receiving array element positioning system and method
  • High-precision deep-water emission array and multi-element vertical receiving array element positioning system and method
  • High-precision deep-water emission array and multi-element vertical receiving array element positioning system and method

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with accompanying drawing:

[0025] As shown in the attached figure, this high-precision deep-water transmitting array and multiple vertical receiving array element positioning system mainly includes a position calibration device 1, a deep-sea transponder 2, an inclination angle and azimuth sensor 3, a submersible mark body 4, and a sound emitting source 5 , the vertical receiving array element 6, the deep-sea sending and receiving submersible mark 7, the deep-sea transponder 2 is arranged on the seabed, and is arranged on the four corners of a rectangle whose side length is not less than 1km, and the position calibration device 1 is installed on the submersible through a fixed fixture. Near the emitting sound source 5 on the main body 4, the inclination and azimuth sensors 3 are installed through a fixed fixture near the emitting sound source 5, and the vertical receiving array element 6 that needs t...

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Abstract

The invention discloses a high-precision deep-water emission array and multi-element vertical receiving array element positioning system and method. The system mainly comprises a calibration device and the like, wherein deep-sea transponders are arranged on the seabed and arranged at the four top corners of a rectangle, the position calibration device is installed near an emission sound source ona subsurface buoy body through a fixing clamp, an inclination angle and azimuth sensor is installed near the emission sound source through a fixing clamp, and a vertical receiving array element needing to obtain the position in real time is provided with an inclination angle and azimuth sensor at the farthest end through a fixing clamp. The system is applied to positioning the positions of the emission sound source and the receiving array element in the deep-sea acoustic tomography test process, has the advantages of being high in positioning precision, deep in acting sea area, capable of greatly reducing acoustic tomography test inversion errors caused by space positioning errors and capable of being widely applied to various deep-sea acoustic propagation tests, seabed acoustic imaging tests and the like.

Description

technical field [0001] The invention relates to the field of marine acoustic detection, in particular to a positioning system and method for high-precision deep-water transmitting arrays and multiple vertical receiving arrays. Background technique [0002] In the classic ocean acoustic tomography theory proposed by Munk and Wunch in 1979, the acoustic means and inversion methods required to describe the mesoscale ocean are discussed. In the classical theory, the scale range of ocean acoustic tomography observation can reach more than 1000km, which is a very efficient ocean observation method. It adopts low-frequency, high-power, high-sound source-level transmitting transducers to transmit acoustic pulses, and adopts large-scale vertical receiving arrays. To receive the acoustic signal, the purely theoretical acoustic tomography test requires accurate measurement and positioning of the acoustic signal emission start point at the emission time and the vertical receiving array ...

Claims

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Application Information

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IPC IPC(8): G01S5/30
CPCG01S5/30
Inventor 应晓伟林航张怡珺陈琦
Owner THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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