| 小波分析用于电力设备绝缘在线监测中信噪分离的研究 |
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| 引用本文： | 许涛,戴玉松,李建明.小波分析用于电力设备绝缘在线监测中信噪分离的研究[J].西华大学学报(自然科学版),2004,23(2):13-15. |
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| 作者姓名： | 许涛 戴玉松 李建明 |
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| 作者单位： | 1. 西华大学电气信息学院,四川,成都,610039
2. 四川省电力实验研究院,四川,成都,610072 |
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| 摘 要： | 文章利用小波分析可进行时域与频域同时局部分析,频域窗口随信号的变化自动调整的特点。将小波分析应用于电力设备绝缘在线监测这类具有较大背景干扰情况下的信号处理,选择合适的小波基对混有噪声的信号进行变换,以实现信号与噪声的分离。并利用小波变换的快速算法对信噪分离作了仿真计算,讨论了小波分析在线监测等领域的应用前景。
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| 关 键 词： | 电力设备 小波分析 在线监测 信号处理 噪声 |
| 文章编号： | 1000-5722(2004)02-0013-03 |
| 修稿时间： | 2003年7月14日 |
Application of Wavelet Analysis to Separation of Signal and Noise in on-line Monitoring Insulation of Power Device |
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| XU Tao,DAI Yu-song,LI Jian-ming.Application of Wavelet Analysis to Separation of Signal and Noise in on-line Monitoring Insulation of Power Device[J].Journal of Xihua University:Natural Science Edition,2004,23(2):13-15. |
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| Authors: | XU Tao DAI Yu-song LI Jian-ming |
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| Affiliation: | XU Tao~1,DAI Yu-song~1,LI Jian-ming~2 |
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| Abstract: | The wavelet analysis is widely applied in various aspects of engineering due to its good performance in the analysis of time and frequency domain.Considering the feature that the wavelet analysis can be used to perform simultaneously partial analysis in time and frequency domain,this paper analyses the signal mixed with noise and separates the signal and noise.It is beneficial to the signal disposal of power systems on-line monitoring insulation which have great disturbance background.The emulating calculation for separation of the signal and noise is carried out,and the possible applications of wavelet analysis in several areas of on -line monitoring are discussed. |
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| Keywords: | power device wavelet analysis on -line monitoring signal disposal noise |
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