| 模糊提升小波在脉冲漏磁信号处理中的应用 |
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| 引用本文： | 费骏骉,左宪章,张云,张韬.模糊提升小波在脉冲漏磁信号处理中的应用[J].国外电子测量技术,2011,30(8):35-38,65. |
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| 作者姓名： | 费骏骉 左宪章 张云 张韬 |
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| 作者单位： | 1. 军械工程学院 电气工程系 石家庄050003;77159部队 眉山620010
2. 军械工程学院 电气工程系 石家庄050003 |
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| 摘 要： | 在脉冲漏磁检测中,有效抑制信号中的噪声是最终正确识别缺陷的关键环节之一.介绍了提升小波变换的基本理论及传统阈值降噪方法;针对传统硬、软阈值法的局限性,提出了包括带有可变因子的隶属函数的模糊阈值处理方法;运用该方法对仿真和实验信号进行了降噪研究.结果表明,采用模糊提升小波降噪方法能够很好的抑制脉冲漏磁信号中的噪声,在实时...
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| 关 键 词： | 提升小波 模糊阈值处理 脉冲漏磁检测信号 降噪 |
Applications of fuzzy lifting wavelet in PMFL signal processing |
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| Fei Junbiao,Zuo Xianzhang,Zhang Yun,Zhang Tao.Applications of fuzzy lifting wavelet in PMFL signal processing[J].Foreign Electronic Measurement Technology,2011,30(8):35-38,65. |
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| Authors: | Fei Junbiao Zuo Xianzhang Zhang Yun Zhang Tao |
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| Affiliation: | Fei Junbiao1,2 Zuo Xianzhang1 Zhang Yun1 Zhagn Tao1(1.Department of Electric Engineering,Ordnance Engineering College,Shijiazhuang 050003,China,2.77159 Forces,Meishan 620010,China) |
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| Abstract: | Effectively inhibit the noise in signal is the key to correctly identify the defects in pulse magnetic flux leakage(PMFL) detection.The basic theory of lifting wavelet transform and the traditional thresholding method are introduced.The fuzzy thresholding method which including a membership function with a variable factor to deal with the limitations of traditional hard and soft threshold method are proposed.The method in simulation and experimental signal are researched.The results show that the fuzzy lift... |
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| Keywords: | lifting wavelet fuzzy threshold processing pulsed magnetic flux leakage signal denoise |
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