| 基于干涉仪原理的闪电先导VHF辐射源速度测量 |
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| 引用本文： | 赵玉祥,张广庶,张彤,王彦辉,李亚珺.基于干涉仪原理的闪电先导VHF辐射源速度测量[J].物理实验,2011(8). |
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| 作者姓名： | 赵玉祥 张广庶 张彤 王彦辉 李亚珺 |
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| 作者单位： | 天水师范学院物理与信息科学学院;中国科学院寒区旱区环境与工程研究所西部气候环境与灾害实验室; |
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| 基金项目： | 国家自然科学基金项目(No.40775004,No.41075002),国家自然科学基金重点项目(No.41030960) |
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| 摘 要： | 简述了闪电VHF辐射源窄带干涉仪定位原理及其数据处理方法,利用改进的窄带干涉仪系统对闪电先导VHF辐射源进行定位,给出了闪电放电通道的时空结构,并结合电场变化资料和声光差记录,估算了闪电先导放电发展的速度.
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| 关 键 词： | 闪电 VHF辐射源 窄带干涉仪 先导 |
Measuring the speed of VHF radiation of lightning leader based on the theory of narrowband interferometer |
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| ZHAO Yu-xiang,ZHANG Guang-shu,ZHANG Tong,WANG Yan-hui,LI Ya-jun.Measuring the speed of VHF radiation of lightning leader based on the theory of narrowband interferometer[J].Physics Experimentation,2011(8). |
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| Authors: | ZHAO Yu-xiang ZHANG Guang-shu ZHANG Tong WANG Yan-hui LI Ya-jun |
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| Institution: | ZHAO Yu-xiang1,ZHANG Guang-shu2,ZHANG Tong2,WANG Yan-hui2,LI Ya-jun2(1.School of Physics and Information Science,Tianshui Normal College,Tianshui 741001,China,2.Laboratory for Climate Environment and Disasters of Western China,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,China) |
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| Abstract: | The theory and method of data processing of lightning location system,narrowband interferometer were introduced.Using the improved narrowband interferometer,the whole progression process in time and space of a lightning flash could be reconstructed.The discharge speed of lightning leader was estimated with the data of electric field change and the difference between light and sound of lightning. |
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| Keywords: | lightning VHF radiation source narrowband interferometer leader |
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