Modified Transmission Line Model with a Current Attenuation Function Derived from the Lightning Radiation Field—MTLD Model

In return strokes, the parameters that can be measured are channel base current and stroke speed. For this reason, many models have been developed with these two parameters, among others, as inputs. Here, we concentrate on propagation type engineering where is represented by a pulse propagating upwards along leader channel. models, in addition to speed, way which attenuates specified an input parameter. The goal of paper show that, within confines once speed known, radiation field used evaluate how After giving mathematics necessary for inverse transformation, procedure illustrated extracting attenuation curve from typical wave shape distant subsequent strokes. derived both first electromagnetic fields at different distances. It shown all experimentally observed features reproduced curve, except subsidiary peak long zero-crossing times. order obtain strokes agreement measurements, one has incorporate dispersion into model. case reduction height needed desired features.