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| 小波变换在漏磁检测信号处理中的应用 | |
| 引用本文： | 陈正阁,王长龙,梁四洋,熊毅.小波变换在漏磁检测信号处理中的应用[J].火力与指挥控制,2009,34(2). |
| 作者姓名： | 陈正阁 王长龙 梁四洋 熊毅 |
| 作者单位： | 1. 军械工程学院,河北,石家庄,050003;解放军63883部队,河南,洛阳,471000 2. 军械工程学院,河北,石家庄,050003 3. 河南科技大学材料科学与工程学院,河南,洛阳,471003 |
| 基金项目： | 国家自然科学基金，军械工程学院科学研究基金 |
| 摘 要： | 在对军用装备进行漏磁无损检测时,漏磁信号中含有大量噪声,针对这种情况,介绍了小波变换消噪理论.在数字化实现中,离散小波变换是利用Mallat分解与重构算法来完成.仿真试验中,选取二阶样条小波为小波函数,对从漏磁检测装置中采集到的漏磁信号进行消噪.结果表明将小波变换应用于炮管漏磁检测中,能提高检测信号的信噪比和抗干扰能力.为漏磁信号分析、特征提取和缺陷漏磁反演打下了基础. |
| 关 键 词： | 漏磁检测 小波变换 Mallat算法 消噪 |
Application of Magnetic Flux Leakage Inspection Signal Processing based on Wavelet Transform |
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| CHEN Zheng-ge,WANG Chang-long,LIANG Si-yang,XIONG Yi.Application of Magnetic Flux Leakage Inspection Signal Processing based on Wavelet Transform[J].Fire Control & Command Control,2009,34(2). | |
| Authors: | CHEN Zheng-ge WANG Chang-long LIANG Si-yang XIONG Yi |
| Institution: | 1.Ordnance Engineering College;Shijiazhuang 050003;China;2.No.63883 Unit of PLA;Luoyang 471000;3.School of Materials and Engineering;Henan University of Science and Technology;Luoyang 471003;China |
| Abstract: | When magnetic flux leakage(MFL) testing means is employed in nondestructive evaluation of military equipments,MFL signal contains a lot of noises,considering the circumstances,this paper introduces wavelet transform de-nosing theory.In numeralization realization,disperse wavelet transform is performed by Mallat's decomposition and reconstruction algorithm.In simulation experiment,a second-order spline wavelet is chosen as wavelet function,and the noises of MFL signal from MFL detecting device are reduced.Th... |
| Keywords: | magnetic flux leakage wavelet transform Mallat's algorithms de-noising |
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