摘要
阐述了频谱分析的基本原理和计算方法,运用傅里叶变换将时域上的大坝监测数据转换到频域,利用其频谱特性分析温度、水位、降水等因子对大坝位移的效应量,并通过多元回归分析法进行验证,为分析大坝变形成因及建立变形模型提供了新的参考依据。
This paper elaborates the basic principle and the computational method of spectrum analysis. The dam monitoring data in the time domain is conversed to that in the frequency domain by the Fourier transformation, The spectrum characteristics of temperature, water level, rainfall and other factors are used to analyze the dam displacement, which is validated by multiple regression analysis, It provides a new reference for the analysis of deformation causes and model establishment of dam deformation.
出处
《水电自动化与大坝监测》
2008年第4期56-58,共3页
HYDROPOWER AUTOMATION AND DAM MONITORING
关键词
大坝变形
频谱分析
多元回归分析
dam deformation
spectrum analysis
multiple regression analysis
