Research on Three-Station Location Method for Nuclear Explosion Infrasound Detection

Abstract:

This paper, aiming at infrasound ternate array, adopts time difference of arrival of the sound wave to carry out event location calculation with program implementation to judge the direction of incoming wave of the explosion infrasound event and to estimate the distance of explosion dot at the same time. Through the verification of this algorithm by chemical explosion experiment, the result shows that the location precision is within the range of 2° and the distance estimation precision aiming at actual distance of 1,550m is within the range of 100m. Current technologies mainly adopt ternate array for event orientation and multiple ternate arrays crosswise to complete event location. Compared to the simplest single three-station infrasound location technology, the location method in this paper reaches a higher location precision.

• Periodical: Applied Mechanics and Materials (Volumes 727-728)
• Pages: 651-655
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.727-728.651
• Online since: January 2015
• Authors: Xin Liang Pang*, Ying Wang, Yan Ma, Xian You Cheng
• Keywords: Chemical Explosion Location, Nuclear Explosion Infrasound, Three-Station Location

References

[1] Tangy Wei, Liu Junmin, et al. Analysis of infrasound generated by the satellite guangmingxing 3 launched on 13th April [J]. Environment Engineering, 2013, 31(01): 81-84.

[2] Brian W. Stump, Sara Mihan McKenna, et al. Seismic and infrasound data and models at near-regional distances [C]. 24th Seismic Research Review – Nuclear Explosion Monitoring: Innovation and Integration, 2006: 572-581.

[3] Chen Huhu, Jin ping, et al. Infrasound monitoring and early warning of debris flow along montanic railway line [J]. Nuclear Electronics and Detection Technology, 2010, 30(9): 1168-1172.

[4] LU Jun, GUO Quan, et al. Anomalous infrasonic waves before an small earthquake in Beijing [J]. CHINESE JOURNAL OF GEOPHYSICS, 2012, 55(10): 3379-3385.

[5] GUO Quan. Research of infrasound sensor and detecting technology [D]. Master of philosophy from Shandong university of science and technology, 2009. 6.

[6] Wei Xinyuan. Key technology research of infrasound source positioning based on wide-area sensor network [D]. Master of philosophy from Shandong university of science and technology, 2011. 6.

[7] LIN Lin, YANG Yichun, et al. Observation＆study of a kind of low-frequency atmospheric infrasonic waves [J]. ACTA ACUSTICA, 2010, 35(2): 200-207.