Method of pulsed electromagnetic ultra wideband sounding of the underlying environment
V. B. Boltintsev, V. N.
Ilyakhin, K. P. Berzrodnyi
January 16, 2012
Abstarct. A method for subsurface EMI UWB sounding is using different DSRD (Drift Step
Recovery Diodes) generators for the emission of electromagnetic waves. More depth of the signal propagation
is based on the manifestation of the low-frequency dispersion of
the dielectric constant of the medium, which is due to the
presence of induced polarization with
the dipole-relaxation mechanism, which describes the behavior of wet soil
under the influence of a strong
electromagnetic pulse field. The article describes
methods for solving
the inverse problem of depth and
a comparison of EMI UWB sounding predictions ahead of
tunnels with the results of direct tunneling.
Keywords: ultra wide band - UWB; drift sep recovery
diodes; Wiener – Hopf equation (method); underground radar measurements.