摘要
电线电缆作为一个应用广泛的基础产业,占据着我国电工行业1/4的产值,仅次于汽车行业,是我国第二大行业,被称作国民经济的"动脉"和"神经"。因此,对于电线电缆故障点的确定技术也是一个热门的课题。近年来,国内外学者对这个课题进行了深入的研究,取得了一定的成果。文中主要利用实验仿真手段,借助小波分析理论,在研究阈值去噪方法的基础上,研究了基于阈值的3σ去噪方法在电缆故障诊断中的应用。实验结果表明,文中方法在电缆故障特征信号的提取中的应用具有可行性。
The wire and cable, as a basic industry of wide applications, occupies 1/4 the output value of China＇s electrical industry, second only to the automotive industry, and is considered as the ＂artery＂ and ＂nerve＂ of national economy. In recent years the determination of the point of failure for the wire and cable has been attrac-ting in-depth study by domestic and foreign scholars. By means of experimental simulation and with the help of the wavelet analysis, threshold denoising method is discussed, and its application in the cable fault diagnosis is studied. Experimental results show that the method is feasible in cable fault characteristic signal extraction.
出处
《电子科技》
2013年第9期110-112,共3页
Electronic Science and Technology
关键词
小波分析
故障诊断
3σ
wavelet analysis
fault diagnosis
3σ
