ARAMINI R.

This paper presents a new method to solve the inverse problem of reconstructing the lightning return-stroke current from measurements of the radiated magnetic field. Although the lightning channel is still assumed to be straight, vertical and at a known distance from the sensors measuring the fields, no model or channel-base measurement of the...

A correct representation of the lightning current is crucial when the electromagnetic field radiated to a point of interest has to be computed. Based on the engineering models of Transmission Line type, such representation involves the knowledge of the return-stroke speed, the channel-base current, the channel height and the attenuation...

Although characterized by two different mathematical definitions, both the Radon and the Hough transforms ultimately take an image as input and provide, as output, functions defined on a preassigned parameter space, i.e., the so-called Radon and Hough sinograms, respectively. The parameters in these two spaces describe a family of curves, which...