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| 基于小波分析的工程信号调制解调方法及其应用 | |
| 引用本文： | 樊可清, 王玲, 陈保平. 基于小波分析的工程信号调制解调方法及其应用[J]. 电子与信息学报, 2001, 23(8): 758-763. |
| 作者姓名： | 樊可清 王玲 陈保平 |
| 作者单位： | 1. 五邑大学智能技术与系统研究所, 2. 五邑大学机电工程系, 3. 石家庄铁道学院计算机系, |
| 摘 要： | 该文从工程应用角度出发,以信号渐进性为基础分析了Hilbert变换解调、小波变换多尺度解调和小波脊提取等3种信号解调方法的实用算法、应用特点和局限性。文中通过一个结构振动分析的工程应用实例,讨论了利用渐进小波分析方法同时获取信号调幅、调频信息的解调方法的优越性及其应用问题。 |
| 关 键 词： | 工程诊断 解调 小波分析 |
| 收稿时间： | 1999-01-15 |
| 修稿时间： | 1999-01-15 |
DEMODULATING METHODS BASED ON WAVELET ANALYSIS AND THEIR APPLICATION TO ENGINEERING SIGNALS |
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| Fan Keqing, Wang Ling, Chen Baoping. DEMODULATING METHODS BASED ON WAVELET ANALYSIS AND THEIR APPLICATION TO ENGINEERING SIGNALS[J]. Journal of Electronics & Information Technology, 2001, 23(8): 758-763. | |
| Authors: | Fan Keqing Wang Ling Chen Baoping |
| Affiliation: | Inst of Intellegence Technology and System Eng., Wuyi University. Jiangmen 529000 China;Dcpl. of Electromechanical Engineering. Wuyi University Jiangmen 529000 China;Depi. of Computer Shijiazhuang Railway Institute Shijiazhuang 050043 China |
| Abstract: | This paper, taking a view of engineering application and based on the asymp-lotics of signals, analyses practical algorithms and features and limitations in practice of three signal demodulation methods: Hilbert transform method, wavelet based multi-scales method, and asymptotic wavelet ridge extraction method. The advantage and practice problem of the asymptotic wavelet analysis approach, in obtaining the amplitude and frequency modulating information simultaneously, are illustrated with an authentic example of structure vibration analysis. |
| Keywords: | Engineering diagnosis Demodulation Wavelet analyses |
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