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This work is devoted to the impact of random environmental constraints regarding the transient impedance of horizontal grounding wire. Deterministic modeling relies on solving the Pocklington equation in the frequency domain (antenna theory). First, the method is based upon the scattered voltage analytically computed at the input terminal of the grounding electrode; transient impedance is then extracted...
The paper deals with a stochastic-deterministic modeling and sensitivity analysis of the transient field generated by a ground penetrating radar (GPR) dipole antenna and transmitted into a lossy ground in time domain. Uncertainties are inherent to the environmental and geometrical parameters pertaining to GPR applications. Such settings include dielectric properties of a soil, the terrain inhomogeneity,...
This paper aims to couple analytical solution of the Pocklington integro-differential equation with stochastic techniques for the statistics of transient current flowing along horizontal grounding electrode. The electrode is excited with a current source representing a lightning strike current. This problem, as it is the case for electromagnetic compatibility (EMC) issues, is governed by many uncertain...
We present a comparison of six models representing the frequency dependence of soil electrical conductivity and permittivity, applied to the analysis of a horizontal grounding electrode subjected to typical first and subsequent lightning return stroke current. A full-wave computational model is adopted for the analysis, which is based on the antenna theory. It is shown that models by Scott, Smith-Longmire,...
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