An identification procedure for lightning return strokes

In this paper an inverse procedure for the identification and the reconstru ction of the waveform of the lightning return stroke current is presented. It is based on the acquisition of the vertical component of the electric fi eld radiated by the discharge channel at different locations on the ground and it does not require any information about the channel base current. The approach has been validated by means of the numerical simulation of the cl assical Transmission Line, Modified Transmission Line Linear and Modified T ransmission Line Exponential engineering models, showing good accuracy in a ll cases. (C) 2001 Elsevier Science B.V. All rights reserved.