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Ultra-short baseline device suitable for shallow water positioning and positioning method

An ultra-short baseline and positioning base technology, applied in positioning, measuring devices, satellite radio beacon positioning systems, etc., can solve problems such as channel fading, signal delay acquisition, and underwater acoustic channel complexity, etc., to achieve positioning trajectory Smooth and stable, high positioning accuracy, less wild point effect

Pending Publication Date: 2018-03-02
嘉兴易声电子科技有限公司
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AI Technical Summary

Problems solved by technology

[0004] However, underwater acoustic channels are complex, especially in shallow water environments. Due to the effects of boundary and medium fluctuations, multipath delays are extended and channel fading is severe. Time delay acquisition is still difficult

Method used

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  • Ultra-short baseline device suitable for shallow water positioning and positioning method
  • Ultra-short baseline device suitable for shallow water positioning and positioning method
  • Ultra-short baseline device suitable for shallow water positioning and positioning method

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Embodiment Construction

[0031] The invention discloses an ultra-short baseline device suitable for shallow water positioning and a positioning method of the ultra-short baseline device suitable for shallow water positioning. The specific implementation of the invention will be further described below in combination with preferred embodiments.

[0032] see attached figure 1 , figure 1 The module structure of the ultra-short baseline device suitable for shallow water positioning (hereinafter referred to as the ultra-short baseline device in the description and accompanying drawings) is shown. Preferably, the ultra-short baseline device suitable for shallow water positioning includes a positioning matrix and a deck unit, and is controlled by a main control software. Wherein, the ultra-short baseline device suitable for shallow water positioning needs to be equipped with auxiliary equipment during use, and the above auxiliary equipment includes GPS equipment and beacons.

[0033] Wherein, the positioni...

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Abstract

The invention discloses an ultra-short baseline device suitable for shallow water positioning and a positioning method. The ultra-short baseline device suitable for shallow water positioning includesa positioning array, a deck unit, and an auxiliary device, and is controlled by main control software. A receiving array has a plurality of array elements, the array elements are in the same plane, and the array elements receive acoustic signals at the same time. A transmitting transducer is used to transmit an interrogation signal in an answer mode, and is arranged in the middle of the array elements of the receiving array. A signal processing board is provided with a processor, and the processor adopts a combined architecture of the FPGA and DSP. The ultra-short baseline device suitable forshallow water positioning and the positioning method disclosed in the invention adopt the pulse selection technology and time-delay difference phase correction technology to precisely track and position the target trajectory, and the positioning trajectory is smooth and stable, with few outliers and high positioning accuracy.

Description

technical field [0001] The invention belongs to the technical field of underwater real-time positioning, and specifically relates to an ultra-short baseline device suitable for shallow water positioning and a positioning method for the ultra-short baseline device suitable for shallow water positioning, which are suitable for offshore oil exploration and development, underwater salvage, Marine engineering such as search and rescue can accurately locate and track underwater vehicles (ROV, AUV, UUV, etc.), towed fish, submersible buoys, divers and other underwater targets. Background technique [0002] With the development of the marine industry, the underwater positioning system provides high-precision and high-quality positioning data for marine exploration and research, marine engineering, marine mineral resources, underwater archaeology, and marine defense construction. [0003] Ultra-short baseline positioning is an underwater acoustic positioning technology, and its basel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/18G01S19/45
CPCG01S5/183G01S19/45Y02A90/30
Inventor 何海兴尹彩玲薛睿付奇
Owner 嘉兴易声电子科技有限公司
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