| 小波变换在超声检测信号去噪中的应用 |
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| 引用本文： | 马宏伟,王彬.小波变换在超声检测信号去噪中的应用[J].无损检测,2004,26(2):68-71. |
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| 作者姓名： | 马宏伟 王彬 |
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| 作者单位： | 西安科技大学,机械工程学院,西安,710054 |
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| 基金项目： | 陕西省自然科学基金资助项目(2001C40) |
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| 摘 要： | 根据超声检测缺陷回波的特点,提出了基于小波变换的超声缺陷回波的去噪方法。结果表明,它能较好地抑制噪声,使用该法处理的信号的信噪比明显提高,并且具有较高的缺陷定位精度和纵向分辨率。
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| 关 键 词： | 超声检测 小波变换 去噪 信号处理 |
| 文章编号： | 1000-6656(2004)02-0068-04 |
| 修稿时间： | 2003年4月2日 |
APPLICATION OF WAVELET TRANSFORM TO SIGNAL DENOISING IN ULTRASONIC TESTING |
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| MA Hong-wei,WANG Bin.APPLICATION OF WAVELET TRANSFORM TO SIGNAL DENOISING IN ULTRASONIC TESTING[J].Nondestructive Testing,2004,26(2):68-71. |
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| Authors: | MA Hong-wei WANG Bin |
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| Abstract: | A method based on wavelet transform according to the characteristics of ultrasonic flaw echoes was put forward for signal denoising in ultrasonic testing. Test results showed that noises were depressed well, signal-to-noise ratio was improved obviously, and flaw location accuracy and longitudinal resolution were improved by using the method. |
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| Keywords: | Ultrasonic testing Wavelet transform Denoise Signal processing |
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