摘要
在分析传统小波去噪质量评价指标不足的基础上,本文将小波去噪后的均方根误差和平滑度指标进行无量纲均值化处理,采用熵权法定权,最后将两种指标进行线性组合,得到新的复合评价指标。该指标具有显著优越的去噪评价效果。仿真数据和工程实测沉降监测数据分析表明,本文所确定的分解尺度去噪效果好,算法简单且准确率高,在沉降监测数据分析中具有一定的应用价值。
On the basis of analyzing the insufficient evaluation index of traditional wavelet de-noising quality,this paper divides the root mean square error and smoothness index after wavelet de-noising into dimensionless mean,adopts the entropy weight legal right,and finally linearly combines the two indicators to obtain a new composite evaluation index,which has a significantly superior de-noising evaluation effect. Through the analysis of the simulation data and engineering surveying settlement monitoring data,it shows that the decomposed scale de-noising effect determined in this paper is good with simple algorithm and high accuracy,and it has certain application value in the settlement monitoring data analysis.
引文
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