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	Experimental study on location accuracy of a 3D VHF lightning-radiation-source locating network
	Zhang GuangShu; Li YaJun; Wang YanHui; Zhang Tong; Wu Bin; Liu YanXiu
刊名	SCIENCE CHINA-EARTH SCIENCES
	2015-11-01
卷号	58期号:11页码:2034-2048
关键词	3D lightning-radiation-source locating network location accuracy standard deviation geometric model theoretical error
ISSN号	1674-7313
DOI	10.1007/s11430-015-5119-1
通讯作者	Zhang GuangShu(zhanggs@lzb.ac.cn)
英文摘要	This paper reports the investigation of the location accuracy of a three-dimensional (3D) lightning-radiation-source locating system using sounding balloon measurements. By comparing the information from the balloon-borne VHF transmitter flight path and locations using simple geometric models, the location uncertainties of sources both over and outside the network were estimated. For radiation sources inside the network and below an altitude of 7 km, the horizontal uncertainty was 12-48 m and the total mean value was 21 m (rms), and the vertical uncertainty was 20-78 m and the total mean value was 49 m (rms). Outside the network, the location uncertainties increased with distance. The geometric model showed that range and altitude errors increased as a function of the range squared whereas the range errors increased parabolically with distance, and that was confirmed by the covariance calculation results. The standard deviation was used inside the network and covariance was used outside the network. The results indicated that location errors from a simple geometric model exhibited good agreement with standard experimental data. The geometry of the network, set of measurements, and calculation method were verified as suitable. The chi-square values of the least squares goodness of fit algorithm were verified and the timing error (Delta t (rms)) of the fitting formula was estimated. The distribution of the chi-square values was less than 5, corresponding to a timing error of 50-66 ns (rms).
收录类别	SCI
WOS关键词	RADIO PICTURES ; SYSTEM ; FLASHES ; PLATEAU ; LDAR
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000363258600013
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557213
专题	寒区旱区环境与工程研究所
通讯作者	Zhang GuangShu
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhang GuangShu,Li YaJun,Wang YanHui,et al. Experimental study on location accuracy of a 3D VHF lightning-radiation-source locating network[J]. SCIENCE CHINA-EARTH SCIENCES,2015,58(11):2034-2048.
APA	Zhang GuangShu,Li YaJun,Wang YanHui,Zhang Tong,Wu Bin,&Liu YanXiu.(2015).Experimental study on location accuracy of a 3D VHF lightning-radiation-source locating network.SCIENCE CHINA-EARTH SCIENCES,58(11),2034-2048.
MLA	Zhang GuangShu,et al."Experimental study on location accuracy of a 3D VHF lightning-radiation-source locating network".SCIENCE CHINA-EARTH SCIENCES 58.11(2015):2034-2048.

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