Wide-band VHF scattering from a trihedral reflector situated above a lossy dispersive halfspace

N. Geng, M.A. Ressler, L. Carin

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22 Scopus citations

Abstract

The method of moments (MoM) is used to rigorously analyze wide-band VHF scattering from a perfectly conducting trihedral placed above a lossy, dispersive half space. The method of complex images is employed to evaluate the layered-medium Green's function efficiently and is applied here to the half-space problem. Particular attention is placed on the physics that underlie scattering from such targets (as a function of frequency, incidence angle, polarization, and soil type) for cases in which the target is small or of moderate size relative to wavelength (where high-frequency techniques fail). This problem is of interest when conventional trihedrals are employed to calibrate VHF synthetic aperture radar (SAR) systems.
Original languageEnglish (US)
Article number789655
Pages (from-to)2609-2617
Number of pages9
JournalIEEE Transactions on Geoscience and Remote Sensing
Volume37
Issue number5
DOIs
StatePublished - Sep 1 1999
Externally publishedYes

Keywords

  • Wideband
  • Radar scattering
  • Moment methods
  • Dispersion
  • Green's function methods
  • Physics
  • Frequency
  • Polarization
  • Soil
  • Synthetic aperture radar

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