RESEARCH AND APPLICATION ON SAND STRESS DATA
Earthquake Administration of Fujian Province, Fuzhou 350003
Abstract Based on the output data of sand stress meter, it is found that the impact of the main factors include the noise in high frequency and low frequency, the background changes of the observed signals, the trend anomalies and shortterm anomalies of earthquake precursor. For identifing the different frequency information, the signal is processed using the wavelet analysis method.
Key words :
sand stress
wavelet analysis
denoising
granular media
coseismic deformation
Received: 08 April 2013
Published: 25 September 2013
Cite this article:
Chen Guang,Chen Chaoxian,Wang Qingping et al. RESEARCH AND APPLICATION ON SAND STRESS DATA[J]. jgg, 2013, 33(Supp.1): 122-125.
Chen Guang,Chen Chaoxian,Wang Qingping et al. RESEARCH AND APPLICATION ON SAND STRESS DATA[J]. jgg, 2013, 33(Supp.1): 122-125.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2013/V33/ISupp.1/122
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