| 复小波变换在超声信号分析中的应用 |
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| 引用本文： | 赵未莲.复小波变换在超声信号分析中的应用[J].科技广场,2008(5). |
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| 作者姓名： | 赵未莲 |
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| 作者单位： | 江西财经大学电子学院,江西南昌,330013 |
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| 摘 要： | 超声信号中标志实际测量目标的回波信号常常因受到由材料内部微缺陷(如裂纹、空穴、夹杂等)引起的众多回波干扰信号的干扰而难以识别。为此,本文利用复小波分析方法对实测超声信号进行了分析。试验表明,该技术成功解决了上述难题,并充分提高了超声检测的准确性。
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| 关 键 词： | 超声检测 复小波分析 回波信号 |
Application of Complexwavelet Transform in Ultrasonic Detection Practice |
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| Zhao Weilian.Application of Complexwavelet Transform in Ultrasonic Detection Practice[J].Science Mosaic,2008(5). |
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| Authors: | Zhao Weilian |
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| Abstract: | The presence of numerous disturbing signals,which maybe create when ultrasonic energy meets microdefects(e.g.microcracks,voids or inclusionscon tained in material) during it spropagation,makes it hard to distinguish th"etrue"feedback signal that indicates the object being in spected.So,the complexwavelet transform was adopted in this paper for analysing the ult rasonic signals.Experiments prove that,the method may be distinguished successfully and thereby it s position is determined correctly.This is undoubtedly helpful for further improving the accuracy of ult rasonic detection significantly. |
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| Keywords: | Ultrasonic Detection Complexwavelet Based Correlation Analysis Feedback Signal |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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