Measurement and characterization of VHF system from lightning flashes

Fauzi, Muhammad Uwais Farihin (2022) Measurement and characterization of VHF system from lightning flashes. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

There are numerous applications of frequency spectrum from 20MHz to 1000MHz in Malaysia. The Malaysian Communications and Multimedia Commission (MCMC) has designated a specific frequency bandwidth for each frequency. So, among all the applications, a specific bandwidth between 20MHz and 1000MHz was chosen to determine whether lightning was present in this frequency range. The objective of this project is to design, setup, and calibrate a VHF radiation system based on the type of lightning flashes identified from the fast electric field waveform. Next, is to analyse the characteristic of VHF electric field radiation such as total pulse duration and amplitude. The scope of study for this project are identifying the type of lightning from lightning flash radiation and understanding the characteristic of the electric waveform that was captured. The project methodology includes setting up the VHF system, collecting the measurement data and analyse the characteristic of the waveform that was captured. At the end, analysis find that, there are lightning captured within selected bandwidth that maybe interrupt the frequency spectrum application in Malaysia. As conclusion, all the objective in this project was achieved and all the finding can be concluded.

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