Method and equipment for detecting and positioning uncorrelated noise sources

A detection method and noise source technology, which is applied in the field of detection and positioning of irrelevant noise sources and equipment, can solve problems such as solution loss and achieve low implementation costs

Inactive Publication Date: 2005-06-22
MITERABO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The method does not make any prior assumptions about the number of noise sources and any possible correlation between them, which results in a loss of solution

Method used

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  • Method and equipment for detecting and positioning uncorrelated noise sources
  • Method and equipment for detecting and positioning uncorrelated noise sources
  • Method and equipment for detecting and positioning uncorrelated noise sources

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Embodiment Construction

[0021] from figure 1 It can be seen that the method of the present invention includes the noise source X 1 、X 2 ,...,X j ,...,X m , where j varies in the range of 1 to M, the noise sources are distributed in space, and each noise source emits a corresponding signal S j , where j varies from 1 to M. The method of the present invention includes the use of a sonic or vibration sensor Y 1 , Y 2 ,...,Y i ,...,Y N For noise source X j Positioning is performed, where i varies from 1 to N, and each sensor emits a corresponding time-varying electrical signal s 1 , s 2 ,...,s i ,...,s N .

[0022] The method consists of taking the time-varying electrical signal s emitted by each sensor i (t) and noise source X j Signal S issued j and representative values. Based on the joint action of various noise sources, the signal s received by the Nth sensor i (t) is expressed as follows:

[0023] s i ( t ...

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Abstract

This invention relates to a method for detecting and location noise sources, among which, every one emits related signals to be detected by sound waves and vibration sensors, each sensor emits coherent electric signals varying along with the time variance. The method includes: getting electric signal emitted by a sensor along with the variance of the time, ever signal from the sensor is the sum of signals emitted by the noise sources. The electric signals are amplified and filtered and digitalized.

Description

technical field [0001] The present invention relates to the detection and localization of noise sources under normal conditions by means of sensors adapted to the characteristics of the noise source. [0002] The present invention relates to methods of detecting and localizing noise sources and presenting narrow or broadband emission spectra, wherein the noise sources are located in one, two or three dimensions or selectively associated with each other. [0003] In particular, the invention finds its best application in the field of locating noise sources, optionally accompanied by echoes, originating, for example, from vehicles, ships, aircraft or weapons. Background technique [0004] In many applications it is necessary to be able to locate a noise source in a relatively precise manner so that measures can be taken to suppress it. In the prior art, many solutions are known for acoustically localizing noise sources. The main known solution is to use a technique of correl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/06
Inventor A·颇木易J·麦尔利特
Owner MITERABO
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