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@ARTICLE{Lopera:57172,
      author       = {Lopera, O. and Milisavljevic, N. and Lambot, S.},
      title        = {{C}lutter reduction in {GPR} measurements for detecting
                      shallow buried landmines: a {C}olombian case study},
      journal      = {Near surface geophysics},
      volume       = {5},
      issn         = {1569-4445},
      address      = {Houten},
      publisher    = {EAGE},
      reportid     = {PreJuSER-57172},
      pages        = {57 - 64},
      year         = {2007},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Detection of land-mines from ground-penetrating radar data
                      is a challenging task demanding accurate and useful
                      filtering techniques to reduce soil-surface and antenna
                      reflections, which obscure the land-mine response. In this
                      paper, we apply and adapt a recently proposed filtering
                      approach to enhance the detection of shallow buried
                      anti-personnel land-mines from data acquired in typical
                      mine-affected soils in Colombia. The methodology combines a
                      radar-antenna-subsurface model with phase-shift migration to
                      filter out antenna and soil-surface effects from off-ground
                      monostatic radar two-dimensional data. Firstly, antenna
                      Multiple reflections are removed using linear transfer
                      functions. Secondly, simulated Green's functions accounting
                      for the surface reflection are subtracted. These functions
                      are derived using the relative dielectric permittivity of
                      the surface, which is estimated by full-wave inversion of
                      the radar signal for measurements taken in local
                      land-mine-free areas. Finally, the antenna radiation pattern
                      effect is filtered out by performing phase-shift migration,
                      and information about size and shape is extracted. Data are
                      acquired using a hand-held vector network analyser connected
                      to an off-ground monostatic horn antenna. Typical Colombian
                      targets such as low-metallic anti-personnel land-mines and
                      low- and non-metallic improvised explosive devices are used.
                      Results prove that the proposed technique effectively
                      reduces clutter under non-controlled conditions and yields
                      target features that are useful for detection of these
                      land-mines.},
      keywords     = {J (WoSType)},
      cin          = {ICG-4},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB793},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Geochemistry $\&$ Geophysics},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000244181900006},
      url          = {https://juser.fz-juelich.de/record/57172},
}