摘要
在小波去噪理论的基础上,应用格拉布斯准则对各层分解系数的阈值进行选取,改进了小波系数阈值估计的模型,并结合实例进行了计算分析。
Based on the theory of wavelet threshold de-noising, this paper uses the Grubbs rule to select the wavelet decomposition coefficient＇s threshold of each layer, improves the threshold estimation model of wavelet coefficient, and finally analyzes it based on a case history.
出处
《西北水电》
2011年第B09期45-48,共4页
Northwest Hydropower
关键词
大坝
安全监测
小波
去噪
阈值
格拉布斯
dam
safety monitoring
wavelet
de-noising
threshold
Grubbs rule
