| 小波变换对超声检测信号去噪效果的分析 |
| |
| 引用本文： | 邬冠华,吴伟,王铮,卢超. 小波变换对超声检测信号去噪效果的分析[J]. 无损检测, 2007, 29(1): 20-23 |
| |
| 作者姓名： | 邬冠华 吴伟 王铮 卢超 |
| |
| 作者单位： | 南昌航空工业学院,南昌,330034 |
| |
| 摘 要： | 从小波变换的奇异性分析入手，给出应用于超声检测信号去噪的小波模极大值算法，并选用Marr函数做小波基函数。该算法对超声合成信号和实测信号的去噪效果均很理想，而且对存有可疑信号点的材料进行的金相分析再一次验证了算法的正确性。
|
| 关 键 词： | 超声检测 小波变换 去噪分析 |
| 文章编号： | 1000-6656（2007）01-0020-04 |
| 收稿时间： | 2005-07-12 |
| 修稿时间： | 2005-07-12 |
Analysis of Denoising for Ultrasonic Testing Signal Using Wavelet |
| |
| WU Guan-hua,WU Wei,WANG Zheng,LU Chao. Analysis of Denoising for Ultrasonic Testing Signal Using Wavelet[J]. Nondestructive Testing, 2007, 29(1): 20-23 |
| |
| Authors: | WU Guan-hua WU Wei WANG Zheng LU Chao |
| |
| Affiliation: | Nanchang Institute of Aeronautical Technology, Nanchang 330034, China |
| |
| Abstract: | The signal singularity was firstly analysed.Modulus maximum denoising algorithm based wavelet transform for ultrasonic testing signal was presented and Marr function was used as mother function.The algorithm's effect on denoising the composed signal and the natural signal was perfect.The microcosmic structure analyses on some representational points proved the algorithm feasible again. |
| |
| Keywords: | Ultrasonic testing Wavelet transform Denoising analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
