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.
出处
《测绘科学》
CSCD
北大核心
2007年第1期47-48,共2页
Science of Surveying and Mapping
关键词
小波变换
多分辨率分析
异常值
wavelet transformation
multi-resolution analysis
abnormality
