收稿日期: 2007-10-31
修回日期: 2008-04-29
网络出版日期: 2008-06-10
基金资助
合肥工业大学博士基金项目“基于GIS和遥感技术的校园地表三维景观重建的研究”(编号:107-035023)资助.
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
吴兆福 , 陶庭叶 , 高飞 . 小波变换后的噪声信息在大坝变形监测精度评定中的应用[J]. 地球科学进展, 2008 , 23(6) : 590 -594 . DOI: 10.11867/j.issn.1001-8166.2008.06.0590
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
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