Near-ground transient field of a high-altitude electromagnetic pulse (HEMP) considering nonlinear air conductivity and ground reflection
Journal
Progress In Electromagnetics Research M
Journal Volume
48
Pages
45-54
Date Issued
2016
Author(s)
Wei, H.-C.
Abstract
Transient field of a high-altitude electromagnetic pulse (HEMP) induced near ground is simulated, of which the ground reflection can not be neglected. The Jefimenko’s equation is applied to compute the incident electric field near the ground, attributed to both the primary and the secondary currents in the source region. The field-dependent air conductivity in the source region is obtained by solving three nonlinear governing equations iteratively, and the reflected field is computed in the frequency domain.
SDGs
Type
journal article