气候变化领域集成服务门户(CCPortal): A new approach to map lightning channels based on low-frequency interferometry

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DOI	10.1016/j.atmosres.2020.105139
	A new approach to map lightning channels based on low-frequency interferometry
	Zhu Y.; Stock M.; Bitzer P.
发表日期	2021
ISSN	0169-8095
卷号	247
英文摘要	A purely interferometric algorithm, named imaging algorithm, has been developed for mapping lightning in the low-frequency band. The imaging algorithm locates a lightning source by computing the three-dimensional correlation of the lightning signals arriving at a pair of lightning sensors, and then summing the correlations of all antenna pairs. This algorithm does not locate the source by solving the non-linear time-of-arrival (TOA) equations, instead the source is located at the global maxima of the total correlation. The lightning map produced by the imaging algorithm for one intracloud flash was compared with that of the hybrid interferometric-TOA algorithm. The imaging algorithm can locate more sources than the hybrid algorithm and produce more complete lightning maps. We also demonstrated that the imaging algorithm can locate multiple concurrent lightning sources even though the recorded signals from the pulses overlap in time at some stations, which is not possible with a traditional TOA-based technique. © 2020 Elsevier B.V.
英文关键词	Interferometry; Lightning mapping; Low-frequency
语种	英语
scopus关键词	Antennas; Interferometry; Hybrid algorithms; Imaging algorithm; Interferometric algorithms; Intracloud flash; Lightning channel; Lightning signals; Low frequency band; Three-dimensional correlation; Lightning; algorithm; correlation; interferometry; lightning; mapping method
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141758
作者单位	Earth Systems Science Center, University of Alabama in Huntsville, Huntsville, AL, United States; Earth Networks, Germantown, MD, United States; Department of Atmospheric Science, University of Alabama in Huntsville, Huntsville, AL, United States
推荐引用方式 GB/T 7714	Zhu Y.,Stock M.,Bitzer P.. A new approach to map lightning channels based on low-frequency interferometry[J],2021,247.
APA	Zhu Y.,Stock M.,&Bitzer P..(2021).A new approach to map lightning channels based on low-frequency interferometry.Atmospheric Research,247.
MLA	Zhu Y.,et al."A new approach to map lightning channels based on low-frequency interferometry".Atmospheric Research 247(2021).