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Experimental Study of Single-Station Lightning Locating Technique

机译：单站雷电定位技术的实验研究

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摘要

An improved approach for locating close lightning strokes based on single-station observation was proposed and practiced.In the approach, a lightning stroke was modelled with an electrical dipole carrying current components in VLF/LF frequency bands, as wavelengths in these frequency bands were much longer than the effective length of the channel of a lightning stroke.For a close lightning stroke, the ratio of the spectra of its vertical electrical field and horizontal magnetic field at ground is theoretically a function of the frequency and the distance to the stroke. The distance of the stroke can then be obtained by fitting the theoretical function with the observed data. The approach was examined by applying it to broadband VLF/LF electrical and magnetic field waveforms observed simultaneously at one station for several strokes in a distance range of 5 to 80 km.In addition, a prototypal single-station lightning location system, which can be analogized to a modified VLF/LF broadband cross-loop magnetic direction finder adding with a lightning distance determining approach, was built up and tested in field.Comparisons with local lightning location network showed that the single-station system performed well.
机译：提出并实践了一种改进的基于单站观测的近距离雷击定位方法，该方法是利用电偶极子在VLF / LF频带中载有电流分量来模拟雷击，因为这些频带中的波长非常大。对于接近的雷击，其垂直电场和水平磁场在地面的频谱比在理论上是频率和到雷击距离的函数。然后可以通过将理论函数与观察到的数据进行拟合来获得冲程距离。通过将该方法应用于在一个站同时观察到的宽带VLF / LF电场和磁场波形，在5到80 km的距离内进行了几次冲程，对该方法进行了检查。此外，原型单站闪电定位系统可以与改进的VLF / LF宽带跨环磁测向仪类似，并增加了雷电距离确定方法，并在现场进行了测试。与本地雷电定位网络的比较表明，单站系统表现良好。

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  • 来源
    《》|2011年|1-6|共6页
  • 会议地点 Chengdu(CN)
  • 作者

    Mingli CHEN; Tao LU; Yaping DU;

  • 作者单位

    Department of Building service Engineering,The Hong Kong Polytechnic UniversityHung Hom,Kowloon,Hong Kong,China;

    Department of Building service Engineering,The Hong Kong Polytechnic UniversityHung Hom,Kowloon,Hong Kong,China;

    Department of Building service Engineering,The Hong Kong Polytechnic University Hung Hom,Kowloon,Hong Kong,China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 大气电现象（大气电学）;
  • 关键词

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