Development of VLF/LF bands interferometer and its initial observations

被引:0
|
作者
Takayanagi Y. [1 ]
Akita M. [1 ,2 ]
Nakamura Y. [3 ]
Yoshida S. [1 ]
Morimoto T. [1 ]
Ushio T. [1 ]
Kawasaki Z.-I. [1 ,4 ]
Yamamoto K. [1 ]
机构
[1] Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, 2-1, Yamada-oka
[2] Overseas Fellowship Division, Japan Society for the Promotion of Science (JSPS), Chiyoda-ku, Tokyo 102-8472
[3] Department of Electric Engineering, Kobe City College of Technology, Higashimachi, Nishi-ku, Kobe, Hyogo 651-2194, 8-3, Gakuen
[4] Electronics, Communications and Computer Science Engineering School, Egypt-Japan University of Science and Technology, New Borg El-Arab City, Alexandria, P.O.Box 179
关键词
Broadband interferometry; EM source location; Lightning discharge;
D O I
10.1541/ieejfms.131.716
中图分类号
学科分类号
摘要
We have been developing EM source location system in VLF/LF bands based on broadband digital interferometry to monitor lightning activities in a wide area. Since EM waves in VLF/LF radiated by lightning discharges propagate a long distance, the VLF/LF interferometer locates lightning discharges a few hundred kilometers away from the VLF/LF interferometer. We conducted lightning observation campaign by a prototype of a VLF/LF band digital interferometer and VHF band digital interferometers in Darwin, Australia. Horizontal distances between VLF/LF and VHF band locations show that VLF/LF radiation sources were located near those of VHF source. We succeeded in locating VLF/LF radiation sources associated with return strokes near the ground. © 2011 The Institute of Electrical Engineers of Japan.
引用
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页码:716 / 722
页数:6
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