| 小波分析在振动攻丝扭矩信号滤波中的应用 |
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| 引用本文： | 叶大鹏,何聪惠. 小波分析在振动攻丝扭矩信号滤波中的应用[J]. 福建农林大学学报(自然科学版), 2001, 30(3): 408-411 |
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| 作者姓名： | 叶大鹏 何聪惠 |
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| 作者单位： | 福建农林大学机电工程学院 |
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| 基金项目： | 福建省自然科学基金资助项目 (E940 0 2 ) |
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| 摘 要： | 介绍了小波分析理论及小波变换的快速算法 ,讨论了该理论在振动攻丝扭矩采样信号滤波中的应用 ,通过对所获得的扭矩信号进行小波变换 ,将其分解成若干个互不重叠的频带 ,利用阈值量化处理的方法去除噪声 (高频信号 ) ,再将剩余部分进行重构 ,形成了抑制噪声的滤波信号 .实验结果表明 ,该方法对采样信号进行滤波是十分有效的 ,对提高扭矩测量值的计算精度很有利
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| 关 键 词： | 振动攻丝 振动切削 小波分析 信号滤波 |
| 文章编号： | 1006-7817-(2001)03-0408-04 |
| 修稿时间： | 2001-04-17 |
Application of wavelet analysis to the signal processing of vibration tapping torque |
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| YE Da peng,HE Cong hui. Application of wavelet analysis to the signal processing of vibration tapping torque[J]. Journal of Fujian Agricultural and Forestry University, 2001, 30(3): 408-411 |
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| Authors: | YE Da peng HE Cong hui |
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| Abstract: | The theory of wavelet analysis and the fast algorithm of wavelet transform is introduced in this paper. The application of this theory to the sample signal processing of vibration tapping torque is discussed here. The signal was decomposed to orthonormal band by wavelet transform. Then the noised part (high frequency) was cancelled by threshold quantity and the remain was reconstructed. The denosing signal was finally accomplished. The experiment results showed that this method was very effective to the sample signal processing. In this way, it is very advantageous for improving calculation precision of the torque measure value. |
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| Keywords: | vibration tapping vibration cutting wavelet analysis signal filtering |
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