Infrasonic Signal Observation through the Monitoring Network

Juan Zhao; Guo Cheng Hao; Zuo Xun Zeng

doi:10.4028/www.scientific.net/AMM.643.224

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 643Infrasonic Signal Observation through the...

Infrasonic Signal Observation through the Monitoring Network

Abstract:

The methods of observing and processing infrasonic signals from earthquake sources are discussed in this paper. The categories of earthquake infrasound are firstly discussed. Spectrum analysis as well as travel speed calculation are used to distinguish high frequency local infrasound from the acoustic-gravity wave. Monitoring network has been established to capture the signals from the atmosphere. Basing on a simplified correlation method, a triangle array made of three sensors can decide the direction of the coming signal, and locate the earthquake sources. The calculation error and steps of further improvement are also discussed at the end of the paper.

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Periodical:

Applied Mechanics and Materials (Volume 643)

Pages:

224-227

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.643.224

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Online since:

September 2014

Authors:

Juan Zhao*, Guo Cheng Hao, Zuo Xun Zeng

Keywords:

Acoustic-Gravity Wave, Infrasonic Signal, Local Infrasound

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