Development of VLF/LF Bands Interferometer and Its Initial Observations. Issue 4 (20th August 2013)

• Record Type: Journal Article
• Authors: Takayanagi, Yuji; Akita, Manabu; Nakamura, Yoshitaka; Yoshida, Satoru; Morimoto, Takeshi; Ushio, Tomoo; Kawasaki, Zen‐Ichiro; Yamamoto, Kenji
• Is Part Of: Electrical engineering in Japan. Volume 185:Issue 4(2013)
• Page Start: 9
• Page End: 17
• Publication Date: 2013-08-20
• Subjects: Electrical engineering -- Periodicals; 621.30952
• DOI: 10.1002/eej.22300
• Languages: English
• ISSNs: 0424-7760

Abstract

<abstract abstract-type="main" id="eej22300-abs-0001"> <title>Summary</title> <p id="eej22300-para-0009">We have been developing an EM source location system using the VLF/LF bands based on broadband digital interferometry to monitor lightning activity 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 a lightning observation campaign using a prototype of a VLF/LF band digital interferometer and VHF band digital interferometers in Darwin, Australia. The VLF/LF radiation sources were located near those of the VHF source. We succeeded in locating the VLF/LF radiation sources associated with return strokes near the ground. © 2013 Wiley Periodicals, Inc. Electr Eng Jpn, 185(4): 9–17, 2013; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.22300</p> </abstract>