| 一种滤除衰减简谐振动信号中奇异点的新方法 |
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| 引用本文： | 闫兵,董大伟,华春蓉,王金诺. 一种滤除衰减简谐振动信号中奇异点的新方法[J]. 振动工程学报, 2005, 18(1): 95-98 |
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| 作者姓名： | 闫兵 董大伟 华春蓉 王金诺 |
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| 作者单位： | 西南交通大学机械工程学院,四川,成都,610031 |
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| 摘 要： | 提出了将带有奇异点的衰减简谐振动信号成分转换成简谐信号 ,再用畸点衰减法滤除奇异点的新思想。在分析衰减简谐振动信号与简谐信号幅值特性的基础上 ,发展了通过在衰减简谐振动信号中乘以逆衰减因子 ,将衰减简谐振动信号成分变换成简谐信号的新方法。对仿真和实测信号的应用研究表明 ,所提新方法切实可行且精度较高 ,能满足工程实际需要。
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| 关 键 词： | 信号处理 振动信号 低通滤波 奇异点 |
| 文章编号： | 1004-4523(2005)01-0095-04 |
| 修稿时间： | 2004-02-16 |
A new method for filtering out singular points in damped harmonic vibration signal |
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| YAN Bing,DONG Da-wei,HUA Chun-rong,WANG Jin-nuo. A new method for filtering out singular points in damped harmonic vibration signal[J]. Journal of Vibration Engineering, 2005, 18(1): 95-98 |
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| Authors: | YAN Bing DONG Da-wei HUA Chun-rong WANG Jin-nuo |
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| Abstract: | This paper presents a new idea of transforming the damped harmo nic signal containing singular points to simple harmonic signal and then filteri ng out the singular points with distorted points attenuation (DPA) method. On th e basis of analysis on the amplitude characteristics of damped harmonic signal and harmonic signal, a new method of tranformation through multiplying th e demped harmonic vibration signal by inverse damping factor is developed. It co ncludes from the simulations and application researches that the new method has feasibility and its precision can meet the practical requirements of engineering application. |
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| Keywords: | signal processing vibration signal low pass filtering singular points |
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