Application of Noise Information Based on Wavelet Transformation in Evaluating Precision of Dam Deformation Monitoring
Received date: 2007-10-31
Revised date: 2008-04-29
Online published: 2008-06-10
In order to assess accuracy of deformation monitoring, we should consider not only measurement accuracy of instrument, but also influences of field condition errors. All these influences exist with random noise during the whole deformation monitoring. We can separate it from observations with wavelet transformation, and assess accuracy of deformation monitoring as random error. Some experiments are done with actual observations, and system error and random error caused by influences of instrument error and random noise are considered. Therefore we can evaluate the quality of deformation monitoring objectively.
Key words： Wavelet transformation; Deformation monitoring; Precision; Noise
WU Zhaofu , TAO Tingye , GAO Fei . Application of Noise Information Based on Wavelet Transformation in Evaluating Precision of Dam Deformation Monitoring[J]. Advances in Earth Science, 2008 , 23(6) : 590 -594 . DOI: 10.11867/j.issn.1001-8166.2008.06.0590
[1] Yue Jianping，Fang Lu，Li Ni. Research advances of theory and technology in deformation monitoring [J]. Bulletin of Surveying and Mapping，2007，7：1-4.[岳建平，方露，黎昵. 变形监测理论与技术研究进展[J] . 测绘通报，2007，7：1-4.]
[2] Huang Shengxiang，Liu Jingnan，Liu Xianglin. Deformation analysis based on wavelet and its application in dynamic monitoring for high-rise buildings [J]. Acta Geodaetica et Cartographica Sinica，2003，32（2）：153-157.[黄声享，刘经南，柳响林. 小波分析在高层建筑动态监测中的应用[J]. 测绘学报，2003，32（2）：153-157.]
[3] Cheng Zhengxing，Lin Yongping. Some applications in image procession with wavelets [J]. Journal of Engineering Mathematic，2001，18（5）：57-86.[程正兴，林勇平. 小波分析在图像处理中的应用[J]. 工程数学学报，2001，18（5）：57-86.]
[4] Du Haofan，Cong Shuang. The study on wavelet de-noising under the environment of MATLAB [J]. Computer Simulation，2003，20（7）:120-122.[杜浩藩，丛爽. 基于MATLAB 小波去噪方法的研究[J]. 计算机仿真，2003，20（7）:120-122.]
[5] Zhang Qin，Jiang Tingchen，Wang Xiuping. Research on application of wavelet transform to deformation observation [J]. Engineering of Surveying and Mapping，2005，14（1）：8-10.[张勤，蒋廷臣，王秀萍. 小波变换在变形监测中的应用研究[J]. 测绘工程，2005，14（1）：8-10.]
/
| 〈 |
|
〉 |
甘公网安备62010202000687
