NDLI: Full-Wave Characterization of Rough Terrain Surface Scattering for Forward-Looking Radar Applications

Content Provider	IEEE Xplore Digital Library
Author	DaHan Liao Dogaru, T.
Copyright Year	1963
Abstract	In characterizing ground surface clutter as relevant to forward-looking radar applications, a finite-difference time-domain (FDTD)-based solver is proposed to study dielectric surface scattering at low depression angles. The solver's effectiveness and accuracy are carefully evaluated for one-dimensional surfaces by comparing Monte Carlo scattering results to those from a surface integral equation (SIE) approach for various surface parameters and incidence angles. It is demonstrated that satisfactory results can be attained at near-grazing angles for most surface parameters of interest with a relatively small simulation domain size, independent of the incidence angle. Subsequently, FDTD simulations of two-dimensional terrain surfaces are featured, along with a demonstration of the effects of ground clutter on target imaging generated by the time-reversal technique. By providing a practical full-wave simulation framework for the emulation of forward-looking radar operation and imaging, this study is intended to facilitate ongoing investigations into the detectability of discrete ground targets in the presence of distributed variable ground clutter in the near-grazing regime.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	3853
Ending Page	3866
Page Count	14
File Size	1756982
File Format	PDF
ISSN	0018926X
Volume Number	60
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rough surfaces Surface roughness Scattering Surface waves Surface impedance Finite difference methods Time domain analysis time-reversal imaging Finite-difference time-domain method forward-looking radar grazing-angle scattering ground clutter distribution integral equation method rough surface
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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