| 一种改进的小波阈值信号去噪方法 |
| |
| 引用本文： | 张晓宁,孙丽君.一种改进的小波阈值信号去噪方法[J].电子科技,2012,25(11):15-17,24. |
| |
| 作者姓名： | 张晓宁 孙丽君 |
| |
| 作者单位： | (1.河南工业大学 信息科学与工程学院,河南 郑州 450001;2.河南工业大学 电气工程学院,河南 郑州 450001) |
| |
| 摘 要： | 为改进滤波效果,提高去噪质量。通过分析软硬阈值去噪的原理和方法,为小波阈值信号处理提出了一种改进的去噪方法。该方法综合了软硬阈值的特点,对其参数进行优化设计,通过调节参数值以更好地获得阈值估计。针对改进后的去噪算法,通过Matlab仿真比较了传统的小波软硬阈值算法与该算法的消噪效果,结果表明,提出的方法有更好的消噪效果和稳定性。
|
| 关 键 词： | 小波阈值去噪 阈值函数 信噪比 均方误差 |
An Improved Method for Wavelet Threshold Signal Demonizing |
| |
| ZHANG Xiao-Ning,SUN Li-Jun.An Improved Method for Wavelet Threshold Signal Demonizing[J].Electronic Science and Technology,2012,25(11):15-17,24. |
| |
| Authors: | ZHANG Xiao-Ning SUN Li-Jun |
| |
| Affiliation: | (1.College of Information Science and Engineering,Henan University of Technology,Zhengzhou 450001,China;
2.College of Electrical Engineering,Henan University of Technology,Zhengzhou 450001,China) |
| |
| Abstract: | In order to improve the filtering effect and the quality of denoising,this paper proposes a new denoising method for wavelet threshold signal processing.The method combines the characteristics of soft and hard threshold and optimizes the parameters for better threshold estimation.Through Matlab simulation,the proposed algorithm is compared with the traditional wavelet threshold,which shows that the proposed algorithm had better denoising effect and stability. |
| |
| Keywords: | wavelet denoising threshold threshold function SNR mean square error |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子科技》浏览原始摘要信息 |
|
点击此处可从《电子科技》下载全文 |
|
