| 基于小波分析的刨花板声发射信号降噪处理 |
| |
| 引用本文： | 刘云飞,殷冬萌.基于小波分析的刨花板声发射信号降噪处理[J].南京林业大学学报(自然科学版),2005,29(6):91-94. |
| |
| 作者姓名： | 刘云飞 殷冬萌 |
| |
| 作者单位： | 南京林业大学信息科学技术学院,江苏,南京,210037 |
| |
| 基金项目： | 南京林业大学“十五”人才基金资助项目 |
| |
| 摘 要： | 应用MATLAB工具箱中小波函数对刨花板受压时产生的声发射信号进行了小波降噪处理,并比较了小波分析降噪和滤波器方法降噪的异同。结果表明:选取适当的小波分解级数,进行合理的阈值门限处理,可以大大提高重构后信号的识别度,对声发射信号采用小波方法降噪可达到较理想的效果。
|
| 关 键 词： | 小波分析 刨花板 降噪 MATLAB 声发射 |
| 文章编号： | 1000-2006(2005)06-0091-04 |
| 收稿时间： | 2005-04-18 |
| 修稿时间： | 2005-09-09 |
The Depression of the Noise in AE from Particleboard Based on Wavelet Analysis |
| |
| LIU Yun-fei,YIN Dong-meng.The Depression of the Noise in AE from Particleboard Based on Wavelet Analysis[J].Journal of Nanjing Forestry University(Natural Sciences ),2005,29(6):91-94. |
| |
| Authors: | LIU Yun-fei YIN Dong-meng |
| |
| Institution: | College of Information Science and Technology Nanjing Forestry University, Nanjing 210037, China |
| |
| Abstract: | The depression of the noise in AE(acoustic emission) signal released from a compressing particleboard based on wavelet function in MATLAB toolbox was introduced.In addition,the two kinds of denoising methods between wavelet analysis and filter were compared.The results showed that wavelet analysis could be used in the dispose of the noise in AE signal well. |
| |
| Keywords: | Wavelet analysis Particleboard Denoise MATLAB AE |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
