| 基于小波包变换的信号去噪方法研究 |
| |
| 引用本文： | 郭计云,王福明. 基于小波包变换的信号去噪方法研究[J]. 现代电子技术, 2007, 30(19): 55-56 |
| |
| 作者姓名： | 郭计云 王福明 |
| |
| 作者单位： | 中北大学,信息与通信工程学院,山西,太原,030051 |
| |
| 摘 要： | 信号去噪在信息学科领域一直是研究的重点之一。传统的信号去噪方法局限在频域范围内,无法表述信号的时域局部性质。而小波变换是一种信号的时频分析,利用小波方法去噪是小波分析应用于实际工程的一个重要方面。介绍了小波包降噪原理及方法,并通过仿真研究与目前的小波去噪方法进行对比,仿真结果证明了该方法去噪的有效性。
|
| 关 键 词： | 小波包变换 去噪 信号处理 傅里叶变换 |
| 文章编号： | 1004-373X（2007）19-055-02 |
| 收稿时间： | 2007-02-02 |
| 修稿时间： | 2007-02-02 |
Signal De-noising Based on Wavelet Packets Transform |
| |
| GUO Jiyun,WANG Fuming. Signal De-noising Based on Wavelet Packets Transform[J]. Modern Electronic Technique, 2007, 30(19): 55-56 |
| |
| Authors: | GUO Jiyun WANG Fuming |
| |
| Affiliation: | School of Information and Communication Engineering Institute, North University of China,Taiyuan,030051 ,China |
| |
| Abstract: | Signal de-noising is always a heat topic in the information discipline domain.The traditional signal de-noising method is work in frequency scope only and can not indicate the trait of signal in time domain.However,the wavelet transform is one kind of signal analysis in time and frequency.Using wavelet de-noising is an important application of wavelet analysis in engineering.The principle and method of de-noiseing with wavelet packets are introduced here.This method is proved to be effective by a simulation example and comparision with recent de-noising using wavelet theory. |
| |
| Keywords: | wavelet packets transform de-noising signal processing Furior transform |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
