APPLICATION OF GREY MODEL BASED ON WAVELET ANALYSIS IN DAM SAFETY MONITORING
Jiao Minglian 1) ; and Jiang Tingchen 1,2)
1) School of Geodesy & Geomatics Engineering, Huaihai Institute of Technology, Lianyungang 2220012) GPS Engineering Research Center of Wuhan University, Wuhan 430079
Abstract：Through analyzing the characteristics of wavelet theory and grey model，the grey forecast model based on wavelet analysis is proposed. By the wavelet transform, the deformation sequence is decomposed and then each subsequence is forecasted with grey model. After reconstruction, the forecasted results are obtained. At the same time, the results are compared with that forecasted only by use of grey model. The research shows that the new forecasting method can improve forecast precision.
