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@ARTICLE{Lopera:59096,
author = {Lopera, O. and Slob, E. C. and Milisavljevic, N. and
Lambot, S.},
title = {{F}iltering {S}oil {S}urface and {A}ntenna {E}ffects {F}rom
{GPR} {D}ata to {E}nhance {L}andmine {D}etection},
journal = {IEEE transactions on geoscience and remote sensing},
volume = {45},
issn = {0196-2892},
address = {New York, NY},
publisher = {IEEE},
reportid = {PreJuSER-59096},
pages = {707 - 717},
year = {2007},
note = {Record converted from VDB: 12.11.2012},
abstract = {The detection of antipersonnel landmines using
ground-penetrating radar (GPR) is particularly hindered by
the predominant soil surface and antenna reflections. In
this paper, we propose a novel approach to filter out these
effects from 2-D off-ground monostatic GPR data by adapting
and combining the radar antenna subsurface model of Lambot
et al. with phase-shift migration. First, the antenna
multiple reflections originating from the antenna itself and
from the interaction between the antenna and the ground are
removed using linear transfer functions. Second, a simulated
Green's function accounting for the surface reflection is
subtracted. The Green's function is derived from the
estimated soil surface dielectric permittivity using
full-wave inversion of the radar signal for a measurement
taken in a local landmine-free area. Third, off-ground
phase-shift migration is performed on the 2-D data to filter
the effect of the antenna radiation pattern. We validate the
approach in laboratory conditions for four differently
detectable landmines embedded in a sandy soil. Compared to
traditional background subtraction, this new filtering
method permits a better differentiation of the landmine and
estimation of its depth and geometrical properties. This is
particularly beneficial for the detection of landmines in
low-contrast conditions.},
keywords = {J (WoSType)},
cin = {ICG-4},
ddc = {550},
cid = {I:(DE-Juel1)VDB793},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Geochemistry $\&$ Geophysics / Engineering, Electrical $\&$
Electronic / Remote Sensing},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000244545900017},
doi = {10.1109/TGRS.2006.888136},
url = {https://juser.fz-juelich.de/record/59096},
}