摘要
在阐述第2代小波变换基本原理及特点的基础上,将最优插值估计引入到预测器设计中,提出了第2代小波变换算法的改进算法。为了验证改进算法的效果,本文将它应用到信号的去噪处理中,并将其去噪效果与第2代小波变换的去噪效果和传统小波变换的去噪效果进行了比较,结果表明,用第2代小波变换改进算法去噪具有更好的性能。
According to the theory of the second generation wavelet transform, the improved algorithm is proposed and the optimum-interval interpolation estimation is used to design the predictor. To verify the effectivity of the improved algorithm, it is applied in the noise reduction. Results of the noise reduction by using the improved algorithm are compared with results of second generation wavelet transform and the traditional wavelet transform. The improved algorithm is proved to be effective in the noise reduction.
出处
《数据采集与处理》
CSCD
北大核心
2005年第3期281-285,共5页
Journal of Data Acquisition and Processing
关键词
第2代小波变换
预测器
去噪
改进算法
second generation wavelet transform
prediction
de-noise
improved algorithm
