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Ultra-short baseline positioning method and device based on three-dimensional array and electronic equipment

An ultra-short baseline positioning and three-dimensional array technology, which is applied in the direction of measuring devices, radio wave measurement systems, and sound wave reradiation, can solve the problems of low positioning accuracy, errors, and many interference items, and achieve filtering of channel noise, Anti-cross-leakage, improve the effect of positioning accuracy

Pending Publication Date: 2022-07-26
苏州澜声科技有限公司
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AI Technical Summary

Problems solved by technology

The current ultra-short baseline positioning method can only locate a single target, and because there are many interference items in the underwater signal transmission, the actual positioning accuracy is not high, and there are large errors

Method used

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  • Ultra-short baseline positioning method and device based on three-dimensional array and electronic equipment
  • Ultra-short baseline positioning method and device based on three-dimensional array and electronic equipment
  • Ultra-short baseline positioning method and device based on three-dimensional array and electronic equipment

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Embodiment Construction

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

[0042] In the following introduction, the terms "first" and "second" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance. The following description provides multiple embodiments of the present application, and different embodiments may be substituted or combined, so the present application may also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes features A, B, C and another embodiment includes features B, D, the application should also be considered to include all other possible combinations of one or more of A, B, C, D example, although this example may not be explicitly described in the following content.

[0043]...

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Abstract

The invention discloses an ultra-short baseline positioning method and device based on a three-dimensional array and electronic equipment, and the method comprises the steps: controlling a transmitting array element to transmit a single-frequency continuous pulse, and enabling the single-frequency continuous pulse to be filled with pulses with different frequencies at different time slots; feedback signals received by the receiving array elements are obtained, and the feedback signals are screened based on the instantaneous frequency variance threshold value to obtain effective signals; and calculating time delay data between the effective signals corresponding to the receiving array elements under the same frequency, and generating target position information based on the time delay data. According to the invention, the feedback pulse signals are received through the three-dimensional array formed by the plurality of cross arrays in different planes, one dimension is added in the vertical direction, the redundancy of array elements is improved, and the positioning precision is further improved.

Description

technical field [0001] The present application relates to the technical field of underwater acoustic communication, and in particular, to an ultra-short baseline positioning method, device and electronic device based on a stereo array. Background technique [0002] Sound waves are the most effective carriers of underwater long-distance propagation of information. Acoustic localization systems are divided into three categories: long baseline, short baseline and ultra-short baseline. The receiving sensor of the ultra-short baseline is similar to the human ear, and the distance between the two ears is equivalent to the baseline. The working principle of the ultra-short baseline positioning system is to install an acoustic beacon on the target to be located underwater, install an ultra-short baseline array on the hull on the water, the acoustic beacon sends out an acoustic signal, and the ultra-short baseline system measures the target after receiving the signal. azimuth and d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/524G01S7/526G01S7/53G01S15/42G01S15/88
CPCG01S7/524G01S7/526G01S7/53G01S15/42G01S15/88
Inventor 尹飞星薛睿付奇
Owner 苏州澜声科技有限公司
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