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.
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