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Title: Otimização da detecção de formas de onda de campos eletromagnéticos emitidos por descargas atmosféricas
Authors: ROCHA, Brigida Ramati Pereira da
RAKOV, Vladimir
Keywords: Descargas atmosféricas
Formas de onda
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: 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.
Appears in Collections:Teses em Engenharia Elétrica (Doutorado) - PPGEE/ITEC

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