小波滤波在大坝观测数据处理中的应用

采用回归分析直接处理大坝观测数据的方法容易受到噪声影响,针对这一情况,提出先对观测数据进行小波滤波,然后再用一元线性回归分析对滤波后信号进行处理的新方法。仿真结果表明,与直接采用一元线性回归分析法相比,该方法得到的待定系数更为准确。

Application of wavelet denoising in dam measured data

The method of using directly regression analysis to deal with dam measured data is easily disturbed by noises.In the paper a new method is proposed,where the measurement data are first denoised by the wavelet,and then the denoised signals are disposed by the one variant linear regression analysis.Simulation results show that,compared with using one variant linear regression direct analysis,our method can get more accurate unknown coefficients.