Open AccessSub Microsecond Analysis of Negative Cloud-To-Ground Lightning Flashes
Author(s) -
A.I.A. Rahman,
Muhammad Akmal Bahari,
Zikri Abadi Baharudin,
Ahmad Aizan Zulkefle,
M. Zai,
Mohd Ariff Mat Hanafiah
Publication year - 2018
Publication title -
indonesian journal of electrical engineering and computer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.241
H-Index - 17
eISSN - 2502-4760
pISSN - 2502-4752
DOI - 10.11591/ijeecs.v11.i2.pp711-717
Subject(s) - lightning (connector) , span (engineering) , meteorology , electric field , software , cloud computing , matlab , simulation , real time computing , electrical engineering , computer science , physics , telecommunications , engineering , operating system , power (physics) , structural engineering , quantum mechanics
This paper expounds a development software for the identification of lightning discharge in cloud-to-ground flashes. The study was to reduce a misleading detection of the electric field radiation of a lightning discharge profile by considering the important parameters of sub microseconds structure of lightning return stroke. The software was built-in MATLAB. The development of the software considered the important parameter of return strokes such as peak value, zero crossing, rising time and fast transition time. We used a modelling technique for training and patterning the 19 return stroke from electric radiation field generated by the negative cloud-ground lightning flashes recorded in Universiti Teknikal Malaysia Melaka. The 19 return strokes data were recorded by using Lecroy HDO4024 with 5 MS/s. The results showed that the software had the ability to recognize the lightning parameters such as peak value, zero crossing, rising time and fast transition time. In conclusion, the software was able solved the uncertainty of the unknown cloud-to-ground lightning flashes parameter. This paper expounds a programmeddevelopment software for theused to do identification of the characteristi cs o o f thelightningd is chargeeither in cloud -to -and ground flashes cloud and ground flashes of the lightning strikes . Th e study was to reduc eeam is leadi ng detection of theelectricfield radiation of a lightning d is chargeprofile by considering the important pa ra meters o fsub microseconds structure of lightning return stroke . programmedshould resolved the problem of unidentified signal o f lightning strikes. The softw are was built-in MATLAB . The developmentof the softw are consideredthe important parameter of return stroke s such as peak value, softwareto recognize t he pattern of the lightning strikes of cloud-to-gr ound flashes or cloud-to-cloud flashes by determining the multiple parameters suc h as zero crossing, rising time and fast transition time. MAKLUMKAN KAEDAH YG “MUNGKIN” MELIBATKAN TRAIN BEBERAPA DATACTH —Weuseda modelling technique A for trainingand patterningthe 19 return strokefromelectric radiation field generated by thenegative cloud - ground lightning flashes recordedinUniversiti Teknikal Malaysia Melaka . The19 return strokesdata were recorded by using Lec r oyHDO4024with 5 MS/s. First, the lightning pattern is described, then the programmed was tested to recognize all the parameters to identify the types of the lightning strikes. The results show ed s th at the e software had the ability to recognize the lightning parameters such as peak value, zero crossing, rising time and fast transition time. In conclusion, t he softw are was able solve dthe uncertainty of theunknown cloud - to - groundunknown lightning flas hes parameter. At last, some suggestions are given to improve the system for future research.Masukan Brief of conclusion….
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