| 基于小波变换的轨道电路移频信号奇异性检测 |
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| 引用本文： | 汤长春,金晓宏,吕浩炯,怀猛. 基于小波变换的轨道电路移频信号奇异性检测[J]. 机车电传动, 2006, 0(5): 54-56 |
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| 作者姓名： | 汤长春 金晓宏 吕浩炯 怀猛 |
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| 作者单位： | 武汉科技大学,机械自动化学院,湖北,武汉,430081;株洲南车时代电气股份有限公司,安全装备事业部,湖南,株洲,412001 |
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| 摘 要： | 针对当前移频自动闭塞系统采用时域分析方法处理轨道电路移频信号显示出准确率不高等问题,引入小波变换的Mallat算法,借助Matlab,通过对实际信号的数字处理,得到用coif5小波基6层分解和相应阈值可以有效地分析和判断轨道移频信号的结论。
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| 关 键 词： | 小波变换 移频信号 奇异性检测 Mallat Matlab 分解 阀值 轨道电路 |
| 文章编号： | 1000-028X（2006）05-0054-03 |
| 收稿时间： | 2006-05-25 |
| 修稿时间： | 2006-05-25 |
Singularity Detection of Track Circuit Frequency-shift Signal Based on Wavelet Transform |
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| TANG Chang-chun,JIN Xiao-hong,LV Hao-jiong,HUAI Meng. Singularity Detection of Track Circuit Frequency-shift Signal Based on Wavelet Transform[J]. Electric Drive For Locomotive, 2006, 0(5): 54-56 |
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| Authors: | TANG Chang-chun JIN Xiao-hong LV Hao-jiong HUAI Meng |
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| Affiliation: | 1.College of Machinery and Automation, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China; 2.Safety Equipment Business Unit, Zhuzhou CSR Times Electric Co., Ltd., Zhuzhou, Hunan 412001, China |
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| Abstract: | The accuracy is not very high when time domain analysis method is used to process track circuit frequency-shift signal for the FSK auto-block system.Mallat algorithm of wavelet transform is introduced as the solution.With Matlab and through the digital processing of actual signals,the conclusion is made that with the decompositions of six layers of coif5 wavelet and the threshold value the track circuit frequency-shift signal could be analyzed and judged effectively. |
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| Keywords: | Mallat Matlab |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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