Variation Characteristics Analysis of Normal Background Noise of Borehole Deformation Observation Data at Sheshan Station in <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:City w:st="on"><st1:place w:st="on">Shanghai</st1:place></st1:City>

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Variation Characteristics Analysis of Normal Background Noise of Borehole Deformation Observation Data at Sheshan Station in Shanghai

详细信息

责任者：Yin Jiyao (School of Ocean and Earth Science ; Tongji University ; Shanghai 200092 ; China) ; Zhu Yuanqing
刊名：Journal of Seismological Research
出版年：2012
卷期：35(1)
关键词：噪声 ; noise ; 小波变换 ; wavelet transform
页码：p.36-41
图表：3 illus., 1 table, 9 refs.
分类号：1600
issnNo：ISSN1000-0666
isbnNo：CN53-1062/P

摘要

The authors analyze characteristics of the normal background noise of borehole deformation observation data recorded at Sheshan Station in Shanghai,and quantitative characterize variation characteristics of their normal information field.The results show that the different scales of the wavelet transform detail parts of deformation observation data contain different signal components.Through studying the non-seismic anomaly characteristics change of different signal scale of wavelet transform,we may obtain precursor information of the earthquake preparation process.