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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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

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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 and a positioning method suitable for positioning in shallow water. The ultra-short baseline device suitable for shallow water positioning includes a positioning array, a deck unit and auxiliary equipment, and is controlled by a main control software. The receiving base array has several array elements, each array element is on the same plane, and each array element receives acoustic signals at the same time. The transmitting transducer is used to transmit an inquiry signal in the response mode, and is arranged in the middle of the array elements of the receiving array. The signal processing board is provided with a processor, and the above-mentioned processor adopts a combined architecture of FPGA and DSP. The ultra-short baseline device and positioning method suitable for shallow water positioning disclosed by the present invention use the pulse selection technology and the time delay difference phase correction technology to accurately track and position the target track, the positioning track is smooth and stable, there are few wild points, and the positioning accuracy is high.

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...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/18G01S19/45
CPCG01S5/183G01S19/45
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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