| 电力扰动信号的小波形态学去噪方法 |
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| 引用本文： | 陈晓娟,李松寒,隋吉生,王丽. 电力扰动信号的小波形态学去噪方法[J]. 河南科技大学学报(自然科学版), 2011, 32(5): 33-36 |
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| 作者姓名： | 陈晓娟 李松寒 隋吉生 王丽 |
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| 作者单位： | 1. 东北电力大学信息工程学院,吉林吉林,132012
2. 吉林省电力有限公司,吉林长春,130021 |
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| 基金项目： | 吉林省自然科学基金项目(20101519); 东北电力大学研究生创新基金项目(20100017) |
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| 摘 要： | 电力系统运行中扰动现象对供电质量和系统的安全运行造成了极大的影响.为了找出各种扰动现象的规律,减少、避免扰动发生,通常采用小波变换方法从噪声中提取扰动信号,但有些扰动信号与噪声的小波变换系数值相近,且低于阈值被当作噪声去掉,导致信号失真.本文提出了一种小波形态学融合的去噪算法.仿真结果表明:该融合算法能有效消除噪声并能...
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| 关 键 词： | 扰动信号 小波变换 数学形态学 |
Wavelet-Morphology De-noising Algorithm of Disturbing Signal |
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| CHEN Xiao-Juan,LI Song-Han,SUI Ji-Sheng,WANG Li. Wavelet-Morphology De-noising Algorithm of Disturbing Signal[J]. Journal of Henan University of Science & Technology:Natural Science, 2011, 32(5): 33-36 |
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| Authors: | CHEN Xiao-Juan LI Song-Han SUI Ji-Sheng WANG Li |
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| Affiliation: | CHEN Xiao-Juan1,LI Song-Han1,SUI Ji-Sheng2,WANG Li1(1.Information Engineering Institute,Northeast Dianli University,Jilin 132012,China,2.Jilin Electric Power Corporation,Changchun 130021,China) |
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| Abstract: | Different disturbances occurring in the operation of power systems often affect power supply quality and system safety.To find the laws of disturbing phenomenons and reduce the occurrence of disturbance,wavelet transform was often used to extract disturbing signals.However,wavelet transform coefficients of some disturbing signals may be similar to the noise and are removed as noise below the threshold,so signal distortion was resulted.Wavelet-morphology was proposed in this paper.Fusion algorithms can effec... |
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| Keywords: | Disturbing signal Wavelet transform Mathematical morphology |
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