| 基于小波的阀值消噪方法讨论及实现 |
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| 引用本文： | 向晓燕,谭子尤,张书真.基于小波的阀值消噪方法讨论及实现[J].现代电子技术,2007,30(17):172-173,176. |
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| 作者姓名： | 向晓燕 谭子尤 张书真 |
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| 作者单位： | 吉首大学,物理信息学院,湖南,吉首,416000 |
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| 摘 要： | 根据小波变换的特点和信号消噪方面的要求,利用小波变换对平稳和非平稳信号进行消噪作了较深入的研究。阐述了利用小波分析消除信号噪声的基本原理和方法,并且利用Matlab软件编制程序实现了基于小波分析的平稳信号和非平稳信号的消噪仿真分析,实验表明小波阀值的选择对于平稳信号和非平稳信号的消噪效果是不同的,在此基础上分析了软硬阀值的特点和缺陷。
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| 关 键 词： | 小波分析 阀值 消噪 非平稳信号 |
| 文章编号： | 1004-373X（2007）17-172-02 |
| 收稿时间： | 2007-01-10 |
| 修稿时间： | 2007-01-10 |
Realization of Eliminating Noise Based on Wavelet |
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| XIANG Xiaoyan,TAN Ziyou,ZHANG Shuzhen.Realization of Eliminating Noise Based on Wavelet[J].Modern Electronic Technique,2007,30(17):172-173,176. |
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| Authors: | XIANG Xiaoyan TAN Ziyou ZHANG Shuzhen |
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| Affiliation: | college of Physics Science and Information Engineering,Jishou University,Jishou,416000,China |
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| Abstract: | According to characteristics of Wavelet Transform and requirements of signals eliminate noise,this paper researches control noises of signals and remove noises from the steady and unsteady signals with the technique of wavelet.It expounds the basic theory and method of removing noises from signals with wavelet transform,and then uses Matlab to realize simulation of wavelet non-noising by programming.The experiments show that satisfactory results can be available through eliminating noise based on wavelet analysis. |
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| Keywords: | wavelet analysis threshold denoising unsteady signal |
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