| 变形监测数据的一种小波去噪法研究 |
| |
| 引用本文： | 李超,郝建新,文鸿雁,田晓龙,陈启华.变形监测数据的一种小波去噪法研究[J].测绘科学,2012(4):24-25,66. |
| |
| 作者姓名： | 李超 郝建新 文鸿雁 田晓龙 陈启华 |
| |
| 作者单位： | 桂林理工大学土建学院;广西空间信息与测绘重点实验室(桂林理工大学);郑州市市政工程勘测设计研究院 |
| |
| 基金项目： | 国家自然科学基金项目(41071294);广西科学基金资助项目(桂科基0991023);广西区研究生科研创新项目(2010105960816M19) |
| |
| 摘 要： | 变形监测数据不可避免会受到噪声污染,本文根据原始信号特征,通过合理的选择小波基,采用自适应阈值法去噪,可提取变形数据有用信号并恢复信号的光滑性,保留信号曲线的特征,达到较好的去噪效果。实例证明了该方法的有效性和可行性。
|
| 关 键 词： | 变形监测 小波分析 去噪 阈值 |
A wavelet de-noising method of deformation monitoring data |
| |
| LI Chao,HE Jian-xin,WEN Hong-yan,TIAN Xiao-long,CHEN Qi-hua.A wavelet de-noising method of deformation monitoring data[J].Science of Surveying and Mapping,2012(4):24-25,66. |
| |
| Authors: | LI Chao HE Jian-xin WEN Hong-yan TIAN Xiao-long CHEN Qi-hua |
| |
| Institution: | ①③(①Civil Engineering College of GUT,Guilin University of Technology,Guangxi Guilin 541004,China;②Zhengzhou City Municipal Engineering Design & Research Institute,Zhengzhou 450046,China;③Guangxi Key Laboratory for Spatial Information and Geomatics,Guangxi Guilin 541004,China) |
| |
| Abstract: | Deformation monitoring data will inevitably be polluted by noise.According to the original signal characteristics,the paper selected the reasonable wavelet base,and used adaptive threshold value method to de-noise,which can be used to extract useful signal deformation data,restore the smoothness of signal,and retain signal curve characteristic,a better de-noising effect was achieved.An instance proved the feasibility and effectiveness of this method. |
| |
| Keywords: | deformation monitoring wavelet analysis de-noising threshold |
| 本文献已被 CNKI 等数据库收录！ |
|
