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Method and system for infrasonic source orientation and speed control

An infrasound source, infrasound technology, applied in direction finders using ultrasonic/sonic/infrasonic waves, systems for eliminating unnecessary waves, radio wave measurement systems, etc. Interference, time delay deviation, inability to find the target infrasound source, etc.

Inactive Publication Date: 2014-07-23
INST OF ACOUSTICS CHINESE ACAD OF SCI
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Problems solved by technology

However, in the traditional fixed-source method, the self-noise of infrasound sensor measuring instruments and digital network transmission and acquisition instruments will produce deviations in the calculated time delay; The generated infrasound will cause great random interference to the target orientation; therefore, in the actual measurement, the above reasons will cause great interference to the calculation results of the orientation and constant speed of the infrasound monitoring network, and sometimes the real target sub-sound cannot be found. Sound source

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  • Method and system for infrasonic source orientation and speed control
  • Method and system for infrasonic source orientation and speed control
  • Method and system for infrasonic source orientation and speed control

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Embodiment Construction

[0072] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0073] A kind of infrasound statistical method provided by the present invention, described infrasound statistical directional method is by laying infrasound sensor monitoring network near the target infrasound source to be measured, and this infrasound sensor monitoring network further comprises several sub-infrasound sensor monitoring network, and each infrasound sensor sub-monitoring network is composed of several infrasound sensors and digital network transmission instruments, and each infrasound sensor is sensitive to infrasound information and is stored online or offline through the digital network transmission instrument , and finally use the statistical orientation method to calculate and determine the orientation of the infrasound source;

[0074] The infrasound sensor monitoring network specifically includes M sub-monitoring networks ...

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Abstract

The invention provides a method and a system for infrasonic source orientation and speed control. The method comprises a step 101) of using a statistic analysis method, solving a effective delay range through a normal distribution model, that is, getting rid of all outliers in all delay values according to a mean value of a delay sum, so as to select an effective delay value; and a step 102) of based on the effective delay value, performing orientation and speed control processes on a infrasonic source by using a delay algorithm, to obtain orientation and speed control processing results of a to-be-tested infrasonic source by each sub-monitoring network. The method also comprises a step 103) of eliminating interference infrasonic sources based on the orientation processing results obtained by the sub-monitoring networks through a statistic comprehensive method, so as to complete optimized orientation on the to-be-tested target infrasonic source. The method is simple and reliable, and does not have harsh requirements on infrasonic monitoring formation and monitoring time, and meanwhile self noise of sensors and digital instruments can be eliminated, and interference generated by other infrasonic sources around the sub-networks can be eliminated.

Description

technical field [0001] The invention relates to the field of acoustic measurement, in particular, the invention relates to a method and system for directional and constant speed of an infrasound source. Background technique [0002] The method of using the infrasound sensor network to determine the infrasound source is to receive and collect infrasound information by deploying the infrasound sensor network, and use the time delay between the sensors in the network to calculate the direction of the source by using the time delay calculation method. However, in the traditional fixed-source method, the self-noise of infrasound sensor measuring instruments and digital network transmission and acquisition instruments will produce deviations in the calculated time delay; The generated infrasound will cause great random interference to the target orientation; therefore, in actual measurement, the above reasons will cause great interference to the calculation results of the orientat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S3/86G01S3/82G01S11/14
CPCG01S3/82G01S3/86G01S11/14
Inventor 冯浩楠杨亦春滕鹏晓吕君
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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