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浏览/检索结果: 共6条，第1-6条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Time-frequency analysis of PD-induced UHF signal in GIS and feature extraction using invariant moments 期刊论文 IET SCIENCE MEASUREMENT & TECHNOLOGY, 2018, 卷号: 12, 页码: 169-175 作者:  Li, Xi 收藏  |  浏览/下载：11/0  |  提交时间：2019/11/26 partial discharge detection  feature extraction  short-time Fourier transform method  signal detection  Time-frequency analysis  UHF measurement  partial discharge measurement  UHF detectors  PD-induced UHF signal acquisition  voltage 252 kV  UHF signal processing  gas insulated switchgear  time-frequency analysis  internal UHF sensor  L-shaped GIS  UHF signal classification  PD-induced UHF signal detection  PD pattern classification  Hu invariant moment  energy density distribution extraction  gas-insulated switchgear  support vector machine classifier  Fourier transforms  signal classification  ultrahigh-frequency method  propagation characteristics analysis  support vector machines   Time–frequency analysis of PD-induced UHF signal in GIS and feature extraction using invariant moments 期刊论文 IET SCIENCE MEASUREMENT & TECHNOLOGY, 2018, 卷号: Vol.12 No.2, 页码: 169-175 作者:  Li, X;  Wang, XH;  Xie, DL;  Wang, XQ;  Yang, AJ 收藏  |  浏览/下载：7/0  |  提交时间：2019/12/26 time-frequency  analysis  gas  insulated  switchgear  partial  discharge  measurement  feature  extraction  signal  detection  signal  classification  UHF  detectors  UHF  measurement  Fourier  transforms  support  vector  machines  Time-frequency  analysis  PD-induced  UHF  signal  detection  ultrahigh-frequency  method  partial  discharge  detection  gas-insulated  switchgear  propagation  characteristics  analysis  PD  pattern  classification  PD-induced  UHF  signal  acquisition  internal  UHF  sensor  L-shaped  GIS  short-time  Fourier  transform  method  UHF  signal  processing  Hu  invariant  moment  energy  density  distribution  extraction  support  vector  machine  classifier  UHF  signal  classification  voltage  252  kV   Partial Discharge Orientation Method in Substation Based on Ultra-High Frequency Phased Array Theory 期刊论文 Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering, 2017, 卷号: 37, 页码: 6126-6135 作者:  Liu, Qing;  Zhu, Mingxiao;  Wang, Yanbo;  Deng, Junbo;  Zhang, Guanjun 收藏  |  浏览/下载：3/0  |  提交时间：2019/11/26 Correlation transformation  Detection and localization  Electronic counter measures  Focusing algorithm  Multiple signal classification algorithm  Two dimensional distribution  Ultra High Frequency (UHF)  Ultra-high frequency   Classification and separation of partial discharge ultra-high-frequency signals in a 252 kV gas insulated substation by using cumulative energy technique 期刊论文 IET SCIENCE MEASUREMENT & TECHNOLOGY, 2016, 卷号: 10, 期号: [db:dc_citation_issue], 页码: 316-326 作者:  Zhu, Ming-Xiao;  Xue, Jian-Yi;  Zhang, Jia-Ning;  Li, Yuan;  Deng, Jun-Bo 收藏  |  浏览/下载：9/0  |  提交时间：2019/12/02 fuzzy maximum-likelihood algorithm  frequency domain calculation  mathematical morphology gradient operation  maximum likelihood estimation  partial discharge source classification  fast Fourier transforms  feature extraction  cumulative energy technique  ultrahigh-frequency method  partial discharge detection  signal classification  source separation  UHF signal feature extraction  fast Fourier transform spectrum  geographic information system  mixed signals separation  fuzzy set theory  UHF measurement  time domain calculation  partial discharge measurement  geographic information systems   Study of cross-shaped ultrasonic array senor applied to partial discharge location in transformers 期刊论文 Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering, 2013, 卷号: 33, 期号: [db:dc_citation_issue], 页码: 154-162 作者:  Xin, Xiaohu;  Li, Jisheng;  Ji, Haiying;  Luo, Yongfen;  Li, Yanming 收藏  |  浏览/下载：8/0  |  提交时间：2019/12/03 High order cumulants  Multiple signal classification methods  Noise suppression  Partial discharge location  Power transformer insulation  Ultra High Frequency (UHF)  Ultrasonic arrays  Virtual array   Simulation of cross-shaped ultrasonic array applied for partial discharge location in oil 会议论文 作者:  Ji, Haiying;  Luo, Yongfen;  Ji, Shengqiang;  Li, Jisheng;  Li, Yanming 收藏  |  浏览/下载：9/0  |  提交时间：2019/12/10 Electromagnetic sensors  High-order cumulant  Multiple signal classification  Noise suppression  Partial discharge location  Ultra High Frequency (UHF)  Ultrasonic phased array  Virtual array