[1]张江源,林福泳.基于离散元的多分辨率信号去噪新方法[J].华侨大学学报(自然科学版),2013,34(2):130-133.[doi:10.11830/ISSN.1000-5013.2013.02.0130]
　ZHANG Jiang-yuan,LIN Fu-yong.A New Method of Signal De-Noising by Multi-Resolution Analysis Based on Discrete Element[J].Journal of Huaqiao University(Natural Science),2013,34(2):130-133.[doi:10.11830/ISSN.1000-5013.2013.02.0130]
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基于离散元的多分辨率信号去噪新方法()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第34卷
期数:
2013年第2期
页码:
130-133
栏目:
出版日期:
2013-03-20

文章信息/Info

Title:
A New Method of Signal De-Noising by Multi-Resolution Analysis Based on Discrete Element
文章编号:
1000-5013(2013)02-0130-04
作者:
张江源;  林福泳
华侨大学 机电及自动化学院, 福建 厦门 361021
Author(s):
ZHANG Jiang-yuan;  LIN Fu-yong
College of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021, China
关键词:
离散元;  多分辨率分析;  小波分析;  信号滤波
Keywords:
discrete element;  multi-resolution analysis;  wavelet analysis;  signal filtering
分类号:
TN911.4
DOI:
10.11830/ISSN.1000-5013.2013.02.0130
文献标志码:
A
摘要:
通过构造离散基,应用多分辨率分析的方法,对噪声信号进行去噪处理.所提出方法的离散基能够显式表示,且具有对称性等特点,通过循环矩阵求逆矩阵的方法,可以使计算量大大降低.对比不同的去噪方法,并分别从信噪比(SNR)和均方误差(MSE)两个方面对信号去噪效果进行评估.实验结果表明:相对小波分析方法而言,该方法在信号去噪方面表现出较好的特性,去噪效果明显,离散基系数在0.75附近达到较好的信噪比及均方误差.
Abstract:
By constructing a discrete base, multi-resolution analysis methods are applied to denoise the noise signal. The proposed method of discrete base can be explicitly represented, and has symmetric characteristics. The calculation is greatly reduced through the cycle matrix inverse matrix method. Comparing different denoising methods, the signal denoising effect is assessed from two aspects of signal-to-noise ratio(SNR)and mean square error(MSE). Experimental results indicate that this method shows good characteristics in signal denoising aspect relative to wavelet analysis method. Denoising effect is obvious, and can achieve good signal-to-noise ratio and mean square error when discrete base coefficient is near 0.75.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2012-4-20
通信作者: 林福泳(1959-),男,教授,主要从事图像处理、工程计算和功率电子的研究.E-mail:fylin@hqu.edu.cn.
更新日期/Last Update: 2013-03-20