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Lightning Localizat...
Lightning Localization Based on VHF Broadband Interferometer Developed in Sri Lanka
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- Abewardhana, Ruwan (författare)
- Univ Colombo, Dept Phys, Colombo, Sri Lanka
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- Abegunawardana, Sidath (författare)
- Univ Colombo, Dept Phys, Colombo, Sri Lanka
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- Fernando, Mahendra (författare)
- Univ Colombo, Dept Phys, Colombo, Sri Lanka
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- Sonnadara, Upul (författare)
- Univ Colombo, Dept Phys, Colombo, Sri Lanka
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- Cooray, Vernon, 1952- (författare)
- Uppsala universitet,Elektricitetslära
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(creator_code:org_t)
- New York : IEEE, 2018
- 2018
- Engelska.
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Ingår i: 2018 34th international conference on lightning protection (ICLP 2018). - New York : IEEE. - 9781538666357
- Relaterad länk:
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https://www.ieee-pes...
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https://urn.kb.se/re...
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Abstract
Ämnesord
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- A basic broadband digital interferometer was developed, which is capable of locating Very High Frequency (VHF) radiation sources in two spatial dimensions and time. Three antennas sensed the time series of broadband electromagnetic (EM) signals and digitized with 4 ns sampling interval for a duration of several milliseconds. A technique based on cross-correlations has been implemented for mapping lightning source locations. A map of the first return stroke (RS) and the preceding stepped leader was mapped successfully, using the system with a time resolution of few milliseconds. The result was compared with the visible events of the ground flash to validate the system.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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