| 行驶车辆振动信号的小波分析 |
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| 引用本文： | 李舜酩,李允平.行驶车辆振动信号的小波分析[J].汽车工程,1997,19(6):370-375,356. |
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| 作者姓名： | 李舜酩 李允平 |
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| 作者单位： | [1]西安交通大学 [2]山东工程学院 |
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| 摘 要： | 本文介绍了小波分析的理论方法，并上小波分析方法应用到了行驶车辆振动的分析中，即：通过二进离散小波变换，把实际振动信号进行多层小波分解，使异常信号和非平稳高频信号得到良好的时间定位和图形显示，并把信号的路面激励与本体振动分离开来。
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| 关 键 词： | 车辆振动 小波分析 二进离散小波 振动信号 |
Wavelet Analysis for Vibration Signal of Moving Vehicle |
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| Abstract: | The theory of wavelet is presented and the method of wavelet analysis is used in vibrational signal analysis.of moving vehicle in this paper. By dyadic discrete wavelet transform, the real signal is decomposed for several wavelet transform layer. As a result, the abnormal signals and unsteady high frequency signal are better localized and illustrated, and the road exitation can be separated from vibration of car body for better evaluation of vehicle performance. |
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| Keywords: | Vehicle vibration Wavelet analysis Dyadic discrete wavelet |
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