| Effective Coefficient Threshold for Complex Wavelet Transform |
| |
| 作者姓名： | TANG Ming TANG Ju XlE Yan-bin ZHOU Qian TANG Shi-yu |
| |
| 作者单位： | 1. Key Laboratory of High Voltage Engineering and Electrical New Technology, Ministry of Education, Electrical Engineering College of Chongqing University, Chongqing 400030, China; 2. Department of Manufacture Technology, Chongqing Power Coporation, Cho |
| |
| 摘 要： | This paper constructs complex wavelet which used for suppressing white noise in PD,and then analyses some disadvantages of several existing wavelet threshold and presents a method of Effective Wavelet Coefficient(EWC) according to the characteristic of modulus maximum of PD signals.Then it is compared with maximin theory threshold selection and Stein unbiased risk estimate theory threshold selection.The findings suggest that the method of EWC is adaptive,and it can suppress noise completely with small distortion of PD signal.
|
| 关 键 词： | partial discharge gas Insulated switchgear effective wavelet coefficient white-noise |
| 收稿时间： | 2006/6/13 0:00:00 |
| 修稿时间： | 2006/6/13 0:00:00 |
Effective Coefficient Threshold for Complex Wavelet Transform |
| |
| TANG Ming,TANG Ju,XlE Yan-bin,ZHOU Qian,TANG Shi-yu.Effective Coefficient Threshold for Complex Wavelet Transform[J].Storage & Process,2006(10):5-9. |
| |
| Authors: | TANG Ming TANG Ju XlE Yan-bin ZHOU Qian TANG Shi-yu |
| |
| Institution: | 1. Key Laboratory of High Voltage Engineering and Electrical New Technology, Ministry of Education, Electrical Engineering College of Chongqing University, Chongqing 400030, China; 2. Department of Manufacture Technology, Chongqing Power Coporation, Cho |
| |
| Abstract: | This paper constructs complex wavelet which used for suppressing white noise in PD,and then analyses some disadvantages of several existing wavelet threshold and presents a method of Effective Wavelet Coefficient(EWC) according to the characteristic of modulus maximum of PD signals.Then it is compared with maximin theory threshold selection and Stein unbiased risk estimate theory threshold selection.The findings suggest that the method of EWC is adaptive,and it can suppress noise completely with small distortion of PD signal. |
| |
| Keywords: | partial discharge gas Insulated switchgear effective wavelet coefficient white-noise |
|
| 点击此处可从《保鲜与加工》浏览原始摘要信息 |
| 点击此处可从《保鲜与加工》下载免费的PDF全文 |
