基于小波变换模极大值的行波奇异性检测  

Singularity Detection of Transient Traveling Wave Using Wavelet Transform Modulus Maximum

作　　者：尚婕[1] 姜文刚[1] 邓志良[1] 

机构地区：[1]江苏科技大学电子信息学院,江苏镇江212003

出　　处：《华东船舶工业学院学报》2005年第4期56-59,共4页Journal of East China Shipbuilding Institute(Natural Science Edition)

摘　　要：为了准确检测用于输电线路故障测距的行波,把基于小波变换模极大值的信号奇异点检测原理应用于行波的时间特征提取,并结合小波消噪技术,在强噪声背景下实现了行波波头的精确定位。仿真表明上述方法是有效的。In order to detect the traveling waves in the transmission lines correctly, the principle of singularity detection by using wavelet transform modulus maximum is presented. With the technology of wavelet de-noising, the traveling waves are accurately extracted in the noise background. The validity of the proposed method is verified by the results from simulation.

关 键 词：小波 模极大值 奇异性 检测 输电线路 

分 类 号：TM714[电气工程—电力系统及自动化]