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| 小波变换在深井水位异常识别中的应用 | |
| 引用本文： | 敬少群,刘春平,王佳卫,车伟,张子广.小波变换在深井水位异常识别中的应用[J].地震研究,2012,35(2):171-176,295. |
| 作者姓名： | 敬少群 刘春平 王佳卫 车伟 张子广 |
| 作者单位： | 1. 湖南省地震局,湖南长沙,410004 2. 防灾科技学院,河北三河,065204 3. 常德市地震局,湖南安乡,410000 4. 河北省地震局,河北石家庄,050021 |
| 基金项目： | 2008公益性行业科研专项项目 |
| 摘 要： | 在小波多尺度分解的基础上,首先利用小波谱识别出所研究时间序列的主尺度,然后采用正弦拟合对主尺度的主频信息进行消除,以达到识别被主频信息掩盖的异常信息的目的。通过对湖南省安乡井水位日均值序列和河北省浅牛6井水位日均值序列的分析处理实验,获得了较好的结果。 |
| 关 键 词： | 深井水位 小波变换 主尺度 主频率 |
Application of Wavelet Multi-scaling Decomposition in Identifying Water Level Anomaly of Deep Well |
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| JING Shao-qun , LIU Chun-ping , WANG Jia-wei , CHE-Wei , ZHANG Zi-guang.Application of Wavelet Multi-scaling Decomposition in Identifying Water Level Anomaly of Deep Well[J].Journal of Seismological Research,2012,35(2):171-176,295. | |
| Authors: | JING Shao-qun LIU Chun-ping WANG Jia-wei CHE-Wei ZHANG Zi-guang |
| Institution: | 1.Earthquake Administration of Hunan Province,Changsha 410004,Hunan,China)(2.Institute of Disaster Prevention,Sanhe 065204,Hebei,China)(3.Earthquake Administration of Changde Municipality,Anxiang 410000,Hunan,China)(4.Earthquake Administration of Hebei Province,Shijiazhuang 050021,Hebei,China) |
| Abstract: | Basing on the wavelet multi-scaling decomposition,we make use of wavelet spectrum to identify the main scale of the studied time sequence,and then eliminate the main frequency information of the main scale by sine function fitting to identify water level anomaly covered by main frequency information.We analyze daily mean value sequences of water level of Anxiang well in Hunan and Qianniu well in Hebei by wavelet multi-scaling decomposition.The results show that the method is useful to identify water level abnormal information covered by dominant frequency information. |
| Keywords: | water level in deep well wavelet transform multi-scale analysis main scale main frequency |
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