Worst-Case Model for Calculation of Lightning Electromagnetic Field

Abstract

A worst-case analytical model of electromagnetic field created by the lightning is developed. The model makes it possible to estimate magnitude, direction and spectra of electric and magnetic field intensity vectors in observation point. The model is intended for express analysis of EMC and immunity of radio and electronic equipment of complex systems. Lightnings with discharge channel between cloud and surface of Earth as well as cloud-to-cloud and intercloud lightnings are considered. The model is applicable for an arbitrary location of observation point. Validation of the developed model is carried out by comparison of results obtained in framework of the model with results of measurements and numerical simulations.