期刊名称：International Journal on Electrical Engineering and Informatics
印刷版ISSN：2085-6830
出版年度：2019
卷号：11
期号：2
页码：341-351
DOI：10.15676/ijeei.2019.11.2.8
出版社：School of Electrical Engineering and Informatics
摘要：The acoustic radiation of lightning was used to get information on the lightningchannel, such as images and locations. A single station of short baseline lightning location wasinstalled to record the acoustic signals of lightning using a microphone array observation system(MAOS). In this study, the differential time of arrival (DTOA) method was used to examine thetime variation in the acoustic signals of lightning and to reconstruct the 3D lightning channelimaging. The results showed that there was good agreement between images recorded bycameras and MAOS. The height of negative charge center in thundercloud is at 4.37-4.83 km.The azimuth and elevation angles of the acoustic radiation source at higher latitude inside athundercloud of two recorded natural lightning discharges were 70.67º, 90º and 67.83º, 73.82º,respectively. The acoustic signal of thunder lasted about 15.15-16.038 s. The system was able toreconstruct the 3D lightning channel imaging.
关键词：Lightning; cloud to ground; image; mapping; acoustic radiation
