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Large-range multi-target cannonball blasting point sound source locating method

A technology of sound source localization and blasting point, applied in the field of positioning, can solve the problems of inability to distinguish multiple blasting point targets, small detection range, etc., to achieve the effect of fast calculation, meeting test requirements, and high degree of automation

Active Publication Date: 2017-11-21
西安瑞联工业智能技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing acoustic methods cannot distinguish multiple bombing point targets, and the detection range is small. Existing methods can only be within 1000m×1000m, and there are many limitations in practical applications

Method used

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  • Large-range multi-target cannonball blasting point sound source locating method
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  • Large-range multi-target cannonball blasting point sound source locating method

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Embodiment

[0051] After the microphone sound source sensor 3 and the substation 2 are set up, the central station 1 sends an instruction to the substation 2 to start the collection of the acoustic signal; Give the calculation result.

[0052] The positioning method includes the following steps:

[0053] 1) Input initial parameters: sensor coordinates (0, 0) (0, 2000) (2200, 1000), shooting range boundary (2500, 2000), search step (2) and threshold (0.3);

[0054] 2) Generate a spatial position array according to the shooting range boundary and the search step;

[0055] 3) Obtaining the time of arrival and sensor position: for each point in the spatial position array, calculate the time of arrival relative to the sensor coordinates, and generate a time difference array;

[0056] 4) Generate a space-time database: combine the spatial position array and the time difference array to construct a space-time database;

[0057] 5) Preprocessing the acoustic signals collected by each substatio...

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Abstract

The invention relates to a large-range multi-target cannonball blasting point sound source locating method. A central station and multiple substations are included, the central station is electrically connected with the substations for data communication, and each substation is provided with a microphone sound source sensor; and the central station is provided with a computer for starting sound wave collection of all the substations. When a blasting point event occurs, the microphone sound source sensor which is close to a cannonball falling region is automatically selected through a program, and then a blasting point sound wave locating method is invoked for giving a computation result. The large-range multi-target cannonball blasting point sound source locating method has the advantages that according to the blasting point locating method, blasting point signals which are collected by the multiple sound sensors distributed on the falling point boundary are selected, and the large-range cannonball blasting point locating requirement is met. The blasting point locating method is not only suitable for locating a blasting cannonball, but also suitable for locating a non-blasting cannonball. The blasting point locating method is not only suitable for locating a single cannonball, but also suitable for locating rapid-fire cannonballs; and in addition, calculation is rapid to achieve, the automation degree is high, and a very satisfactory effect is obtained in actual shooting range experiments.

Description

technical field [0001] The invention relates to a locating method, in particular to a method for locating the sound source of a large-scale multi-target bombing point. Background technique [0002] The location of the impact point of the shell includes two categories: optics and acoustics. The optical method obtains the image of the bombing point area by taking a quick photo or video, and obtains the position of the bombing point by analyzing and extracting the image information. The acoustic method first collects the acoustic signal of the bombing point, and then extracts the information of the bombing point, usually in the form of multi-sensor and sensor array, and usually constructs multiple equations to solve simultaneously to obtain the position of the bombing point. Among them, the optical method is suitable for single-shot explosive bombs, it cannot detect non-explosive bombs; it cannot identify bursts of projectiles; and the detection range is small, usually within ...

Claims

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Application Information

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IPC IPC(8): F42B35/02
CPCF42B35/02
Inventor 张鹏凌宇张亚辉冯松尚书贤李伟华
Owner 西安瑞联工业智能技术有限公司
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