利用离散小波探测沉降测值异常  

Detecting abnormality of sedimentation observed value using discrete wavelet

作　　者：李鹏[1] 田林亚[2] 宋超[1] 

机构地区：[1]北京城建勘测设计研究院有限责任公司,北京100101 [2]河海大学测量工程系,南京210098

出　　处：《测绘科学》2007年第1期47-48,共2页Science of Surveying and Mapping

摘　　要：研究小波变换在沉降测值异常探测中的应用问题,实例分析证明:借助离散小波的多分辨率分析,能有效地探测和剔除沉降观测中的异常值,获得有效的沉降数据,为进一步进行沉降分析与预报提供可靠保证。The application of wavelet transformation in detecting abnormality of sedimentation observed value is studied firstly.The results show that multi-resolution analysis is useful to detect and reject abnormality of sedimentation observed value to obtain effective sedimentation data.It can supply assurance for further analyzing and forecasting sedimentation information.

关 键 词：小波变换 多分辨率分析 异常值 

分 类 号：TU196[建筑科学—建筑理论]