I. Nagano, S. Yagitani, M. Ozaki, Y. Nakamura, K. Miyamura
{"title":"Estimation of lightning location from single station observations of sferics","authors":"I. Nagano, S. Yagitani, M. Ozaki, Y. Nakamura, K. Miyamura","doi":"10.1002/ECJA.20329","DOIUrl":null,"url":null,"abstract":"A system for lightning location from single station observations has been developed for localizing lightning (distance and direction) at rather short distances (several hundred kilometers). In this system, a vertical component of the electric field and two horizontal components of the magnetic field of the VLF wave of the sferics are observed. The sferics are usually observed as a pulse train. The first pulse is used for estimation of the direction. The second and subsequent pulses are multiple reflections between the ionosphere and the ground. The differences in arrival time of these reflected waves are determined by the propagation distance between the ground and the ionosphere. The reflection altitude of the ionosphere and the horizontal distance to the lightning location are estimated from the arrival time difference of more than two pulses. In this research, the electromagnetic pulses radiated from the lightning are first analyzed by the full wave method, considering the ionosphere, free space, and the ground, in order to evaluate the location estimation method. The lightning location is estimated by calculating the space discharge sferics waveform at the observation point. Observations were also carried out with the lightning location system for estimation of lightning locations. © 2006 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 90(1): 25– 34, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.20329","PeriodicalId":100405,"journal":{"name":"Electronics and Communications in Japan (Part I: Communications)","volume":"96 1","pages":"25-34"},"PeriodicalIF":0.0000,"publicationDate":"2007-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"15","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electronics and Communications in Japan (Part I: Communications)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/ECJA.20329","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 15
从单站观测资料估计闪电位置
已经开发了一种单站闪电定位系统,用于在相当短的距离(几百公里)内定位闪电(距离和方向)。在这个系统中,观察到一个垂直分量的电场和两个水平分量的磁场的VLF波的频率。通常以脉冲序列的形式观察脉冲。第一个脉冲用于估计方向。第二次和随后的脉冲是电离层和地面之间的多次反射。这些反射波到达时间的差异是由地面和电离层之间的传播距离决定的。根据两个以上脉冲的到达时间差估计电离层的反射高度和到闪电位置的水平距离。在本研究中,首先采用全波法对闪电辐射的电磁脉冲进行分析,考虑电离层、自由空间和地面,对定位估计方法进行评价。通过计算观测点的空间放电电流波形来估计闪电的位置。天文台亦利用闪电定位系统进行观测,以估计闪电的位置。©2006 Wiley期刊公司电子工程学报,2009,31 (1):357 - 357;在线发表于Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002 / ecja.20329
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