Time delay estimation for UHF signals in PD location of transformers

被引：0
作者：
Yang, L [1 ]
Judd, MD [1 ]
Bennoch, CJ [1 ]
机构：
[1] Univ Strathclyde, Inst Energy & Environm, Glasgow, Lanark, Scotland
来源：
2004 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA | 2004年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Time delay estimation (TDE) is essential for PD location using the UHF technique. However, noise and effects of multi-path propagation are two main problems affecting the accuracy of the estimate. Comparing two methods, which are based on cumulative energy curve and power curve respectively, a cross correlation based method is employed to achieve the estimation. A high-pass filter is applied to the UHF signal to eliminate operating noises. The phase characteristic of the filter is designed to be linear for making the time delay a constant in terms of frequency. A window in the time domain is selected to reduce the effect of multi-path propagation.
引用
收藏
页码：414 / 417
页数：4
相关论文
共 50 条
  • [41] Estimation of the Mutual Time Delay of Signals with Pseudorandom Frequency Hopping
    R. A. Ershov
    O. A. Morozov
    V. R. Fidelman
    [J]. Radiophysics and Quantum Electronics, 2015, 58 : 146 - 154
  • [42] Robust time delay estimation for noise corrupted sinusoidal signals
    Cheepurupalli, Kusma Kumari
    Konduri, Raja Rajeswari
    [J]. 2013 INTERNATIONAL CONFERENCE ON MULTIMEDIA, SIGNAL PROCESSING AND COMMUNICATION TECHNOLOGIES (IMPACT), 2013, : 145 - 149
  • [43] A Cumulative-signals-based Method for Time Delay Estimation
    Mosorov, Volodymyr
    [J]. MEASUREMENT SCIENCE REVIEW, 2019, 19 (02) : 61 - 63
  • [44] Some Considerations About Time Delay Estimation Of Seismic Signals
    Ghita, Cristian
    Raicu, Razvan-Doru
    Oroian, Teofil-Cristian
    [J]. 2014 INTERNATIONAL CONFERENCE AND EXPOSITION ON ELECTRICAL AND POWER ENGINEERING (EPE), 2014, : 720 - 723
  • [45] Adaptive time delay estimation with noise suppression for sinusoidal signals
    So, HC
    [J]. 2002 45TH MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL II, CONFERENCE PROCEEDINGS, 2002, : 412 - 415
  • [46] Sensor response characteristics for UHF location of PD sources
    Orr, Philip J. G.
    Reid, Alistair J.
    Judd, Martin D.
    [J]. PROCEEDINGS OF 2008 INTERNATIONAL CONFERENCE ON CONDITION MONITORING AND DIAGNOSIS, 2007, : 1119 - 1122
  • [47] On Improving the Accuracy and Robustness of Time Delay Estimation of Broadband Signals
    Narayanamurthy, B. H. V. S.
    Satyanarayana, J. V.
    Yegnanarayana, B.
    [J]. CIRCUITS SYSTEMS AND SIGNAL PROCESSING, 2022, 41 (01) : 514 - 531
  • [48] Estimation of the Mutual Time Delay of Signals with Pseudorandom Frequency Hopping
    Ershov, R. A.
    Morozov, O. A.
    Fidelman, V. R.
    [J]. RADIOPHYSICS AND QUANTUM ELECTRONICS, 2015, 58 (02) : 146 - 154
  • [49] Multipath time delay estimation of underwater acoustic sinusoidal signals
    TONG Feng~1 XU Xiaomei~1 FANG Shiliang~2(1 Key Laboratory of Underwater Acoustic Communication and Marine Information Technology of the Ministry of Education
    [J]. ChineseJournalofAcoustics, 2009, 28 (01) : 51 - 61
  • [50] On Improving the Accuracy and Robustness of Time Delay Estimation of Broadband Signals
    B. H. V. S. Narayanamurthy
    J. V. Satyanarayana
    B. Yegnanarayana
    [J]. Circuits, Systems, and Signal Processing, 2022, 41 : 514 - 531
12345