Method and device for positioning seabed acoustic transponder

A technology of acoustic transponder and positioning method, which is applied in the direction of measuring device, sound wave reradiation, satellite radio beacon positioning system, etc., which can solve the problems of inaccurate positioning of submarine acoustic transponder, achieve reliability and simplify data processing The effect of the process

Active Publication Date: 2020-05-29
PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a positioning method and device for a submarine acoustic transponder to solve the problem of inaccurate positioning of the current submarine acoustic transponder

Method used

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  • Method and device for positioning seabed acoustic transponder
  • Method and device for positioning seabed acoustic transponder
  • Method and device for positioning seabed acoustic transponder

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Embodiment Construction

[0024] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] Embodiment of positioning method

[0026] The positioning method of the submarine acoustic transponder of the present invention is realized by combining GNSS positioning and acoustic positioning technology, such as figure 1 As shown, a GNSS antenna is set on the survey ship, which is used to obtain the positioning data of the survey ship on the sea surface through GNSS satellites, and an acoustic transducer is provided at the bottom of the survey ship, and the acoustic transducer can be connected to the submarine acoustic transponder set on the seabed The connection is established through sound waves, that is, the acoustic transducer sends sound wave signals to the seabed and receives sound wave signals returned from the seabed acoustic transponder. The present invention uses GNSS observation data, hull attitude angle observation data...

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Abstract

The invention relates to a positioning method and device for a seabed acoustic transponder and belongs to the technical field of underwater acoustic positioning. The method is characterized in that GNSS observation data, hull attitude angle observation data, sound velocity profile data, underwater acoustic signal round trip time and water depth data are used, according to an established positioning model containing depth difference constraints between a ship bottom transducer and the seabed acoustic transponder, the seabed acoustic transponder can be rapidly and accurately positioned without solving an intermediate quantity so that the data processing flow is simplified, and reliability of the seabed control point positioning result is ensured.

Description

technical field [0001] The invention relates to a positioning method and device for a submarine acoustic transponder, belonging to the technical field of underwater acoustic positioning. Background technique [0002] The 21st century is the ocean century. As an important basic work for all ocean activities, the key is to establish an accurate ocean geodetic control network. Acoustic waves are currently the only wave form that can travel long distances in the ocean. Combined with navigation surveys equipped with GNSS systems Ship is the most widely used method in the positioning of submarine control points in recent years. [0003] The conventional data processing process separates the sea surface dynamic positioning process from the underwater acoustic positioning process independently. First, the sea surface GNSS antenna coordinates are obtained, then the coordinates of the bottom transducer are obtained through datum modification, and finally the absolute coordinates of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/74G01S19/45
CPCG01S15/74G01S19/45
Inventor 吕志平邝英才王方超陈正生吕浩
Owner PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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