| 在超声检测中利用小波分析降噪并提取伤信号 |
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| 引用本文： | 王群,宋文爱.在超声检测中利用小波分析降噪并提取伤信号[J].科技情报开发与经济,2005,15(3):186-187. |
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| 作者姓名： | 王群 宋文爱 |
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| 作者单位： | 中北大学仪器科学与动态测试重点实验室,山西,太原,030051 |
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| 摘 要： | 利用小波和幅度阈值与宽度阈值联合识别定量的方法，对火箭发动机药柱内部缺陷的超声信号进行降噪处理，同时提取缺陷信号。经实验验证，所提出的降噪和缺陷信号提取方法能有效地降低高频噪声的干扰，并正确地提取出缺陷信号。
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| 关 键 词： | 二进小波 降噪 超声检测信号 |
| 文章编号： | 1005-6033(2005)03-0186-02 |
| 修稿时间： | 2004年10月22 |
The Application of Wavelet Analysis in the Processing of Ultrasonic Testing Signals |
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| WANG Qun,SONG Wen ai.The Application of Wavelet Analysis in the Processing of Ultrasonic Testing Signals[J].Sci-Tech Information Development & Economy,2005,15(3):186-187. |
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| Authors: | WANG Qun SONG Wen ai |
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| Abstract: | By using the dyadic wavelet and the method of united recognition of the amplitude strobe and breath strobe, people makes denoise treatment for the ultrasonic signals of the interior defect of medicine cylinder in rocket motor, and abstracts the defective signals. And the test proves that the method for denoise and abstraction of valid signals can effectively eliminate the high frequency noise and abstract defective signals. |
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| Keywords: | dyadic wavelet denoise ultrasonic testing signals |
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