Title :
Through-the-earth magnetic field propagation: modelling and experimental validation
Author :
Ayuso, Natalia ; Cuchí, José A. ; Lera, Francisco ; Villarroel, José L.
Author_Institution :
Inst. de Investigacion en Ingenieria de Aragon, Zaragoza Univ.
Abstract :
In this paper we present a comparison between analytical and experimental results for a vertical magnetic dipole source. Free-space, dissipative infinite, semi-infinite and three-layered models for linear, homogeneous and isotropic horizontal mediums are considered. The exact analytical solutions for magnetic field expressions are reformulated in a suitable form and numerically solved. Moreover, a complex field experiment has been undertaken showing that, unexpectedly, the most complex model does not fit reality the best
Keywords :
electromagnetic wave propagation; magnetic fields; magnetic moments; underground communication; dissipative infinite model; free-space model; homogeneous medium; isotropic horizontal medium; linear medium; semi-infinite model; three-layered model; through-the-earth magnetic field propagation; vertical magnetic dipole source; Accidents; Electromagnetic fields; Electromagnetic modeling; Electromagnetic propagation; Electromagnetic scattering; Geophysics; Magnetic analysis; Magnetic fields; Mathematical model; Telegraphy;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1710616
