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http://10.7.2.42:8080/jspui/handle/2011/11001
Title: | Otimização da detecção de formas de onda de campos eletromagnéticos emitidos por descargas atmosféricas |
Authors: | ROCHA, Brigida Ramati Pereira da http://lattes.cnpq.br/9943372249006341 RAKOV, Vladimir |
Keywords: | Descargas atmosféricas Otimização Formas de onda Amazônia LDWSS |
Issue Date: | 23-Jan-2018 |
Publisher: | Universidade Federal do Pará |
Citation: | LEAL, Adônis Ferreira Raiol. Otimização da detecção de formas de onda de campos eletromagnéticos emitidos por descargas atmosféricas. Orientadora: Brigida Ramati Pereira da Rocha. 2018. 228 f. Tese (Doutorado em Engenharia Elétrica) - Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2018. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/11001. Acesso em:. |
Abstract: | This work aims the application of optimization techniques to detect and record lightning electromagnetic waveforms. As a result of the optimization techniques developed on this Thesis, it is presented the “Lightning Detection and Waveform Storage System - (LDWSS)”. The main optimized points were: cost of the device; improvements of its detection dynamic range; development of a mobile device; possibility to detect in a multi-band way; and calibration in order to infer peak currents from remote measurements of lightning electric fields. The developed system was validated through comparison of a return stroke data in lightning triggered using the rocket-and-wire technique at the International Center for Lightning Research and Testing - ICLRT, of National Lightning Detection Network – NLDN data, and data from the Lightning Observatory in Gainesville - LOG. The main usage of the optimized system is on the investigation of lightning physics and effects, mainly in the Amazon region. As a result of using the system were obtained: a better understanding about Compact Intracloud Discharge - CID; the characteristics of ionosphere heights computed using intraclound and cloud-to-ground lightning electric field waveforms; the conception of a lightning electric field waveform database containing more than 8 thousand waveforms of different types of lightning; and the implementation of the first continuous lightning electric field measurement system in the amazon region, localized at CESIPAM, Belem, PA. |
URI: | http://repositorio.ufpa.br/jspui/handle/2011/11001 |
Appears in Collections: | Teses em Engenharia Elétrica (Doutorado) - PPGEE/ITEC |
Files in This Item:
File | Description | Size | Format | |
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Tese_OtimizacaoDeteccaoFormas.pdf | 15,04 MB | Adobe PDF | View/Open |
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