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Automatic association method for regional infrasound event

An automatic correlation and infrasound technology, applied in the measurement of ultrasonic/sonic/infrasonic waves, complex mathematical operations, measuring devices, etc., can solve the problems of many false events and poor pertinence, achieve accurate automatic matching, improve pertinence, The effect of improving efficiency

Pending Publication Date: 2021-11-05
CTBT BEIJING NAT DATA CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At home and abroad, there are few researches on the correlation method of large-scale infrasound network. The main correlation method is the global uniform grid search method, which is not very pertinent and causes many false events

Method used

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  • Automatic association method for regional infrasound event
  • Automatic association method for regional infrasound event
  • Automatic association method for regional infrasound event

Examples

Experimental program
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Embodiment

[0085] According to the data of three infrasound stations of I31KZ, I43RU, and I46RU at a certain time, the method of the present invention is used to carry out an automatic correlation test to a certain explosion event on that day, and the automatic correlation result record is as shown in Table 1, for the International Data Center record For all 7 events, this method has realized automatic detection. In all 7 events, except for the event that occurred at a certain moment, the automatic processing failed to realize the signal matching of the I43RU station bulletin, and the signals recorded in all other bulletins were automatically detected There are matches in the processing results, and this method automatically correlates 100% of the bulletin results of the International Data Center of an explosion event. This method is tested on the data of the day. In addition to the 7 events that match the international data center, another 3 events located in figure 1 For the events in ...

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Abstract

The invention relates to an automatic association method for a regional infrasound event, which comprises the steps of establishing a special infrasound monitoring station network according to a set infrasound monitoring region, by means of establishing a signal characteristic model and a signal travel time model which accord with the characteristics of a set regional event, designing and establishing regional infrasound event association lattice points containing parameters such as signal travel time, azimuth angle, epicentral distance and unit distance travel time deviation, and accurately retrieving and matching all infrasound signals related to the event by adopting a regional refinement lattice point search method. According to the method, automatic association processing is performed on the infrasound events in the set region by using the monitoring data of the infrasound station of the international monitoring system and the signal detection result of the infrasound station, and an infrasound signal set matched with the events is formed, so that the method has an important value for observing the infrasound events in the atmosphere and the ground, and accurate and automatic matching of the infrasound events in the region is realized.

Description

technical field [0001] The invention belongs to the field of infrasound monitoring, and in particular relates to a method for automatically correlating regional infrasound events. Background technique [0002] Infrasound monitoring technology is an effective technical means to effectively monitor atmospheric and ground explosions. The International Monitoring System of the Comprehensive Nuclear-Test-Ban Treaty plans to establish a global monitoring network including 60 infrasound stations, and has completed the certification of 52 infrasound stations. , and transmit monitoring data to the international data center in real time. Incidents related to infrasound stations have become an important part of the Comprehensive Nuclear-Test-Ban Treaty Organization Audit Event Bulletin. The Bulletin contains more than 3,200 related incidents related to infrasound stations, accounting for 15% of related incidents involving infrasound stations. Infrasound network-related events are almo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00G06F17/10
CPCG01H17/00G06F17/10
Inventor 唐伟刘俊民刘哲函王燕李健王晓明王旭亮南德
Owner CTBT BEIJING NAT DATA CENT
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