NDLI: Coherent scattering from distributed targets

Content Provider	IEEE Xplore Digital Library
Author	Wasylkiwskyj, W. Alatishe, J.
Copyright Year	2008
Description	Author affiliation: US Naval Res. Lab., Washington, DC (Alatishe, J.) \|\| Dept. of Electr. & Comput. Eng., George Washington Univ., Washington, DC (Wasylkiwskyj, W.)
Abstract	Based on the formulation for coherent backscattering from distributed targets previously published by the first author, this paper presents a unified formalism for incorporating the small amplitude, the small slope, the physical optics as well as a ldquotwo-scale modelrdquo approximation into analyses of backscattering by irregular air-dielectric interfaces. The distinguishing feature of this approach is that it takes explicit account of the antenna radiation properties and provides a direct means of numerically assessing the effects of spatial coherence of the surface irregularities on the receiver response. In particular, this leads to a generalization of the normalized backscattering cross-section which becomes dependent on both the antenna radiation properties and surface scattering characteristics. Numerical results obtained under the small amplitude approximation show that spatial coherence of the surface irregularities can lead to significant deviations from the classical Bragg scattering formula.
Starting Page	36
Ending Page	41
File Size	1648058
Page Count	6
File Format	PDF
ISBN	9781424426881
DOI	10.1109/MRRS.2008.4669542
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-22
Publisher Place	Ukraine
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sea surface Surface waves Receiving antennas Spatial coherence Radar scattering Surface roughness Rough surfaces Optical scattering Optical surface waves Backscatter
Content Type	Text
Resource Type	Article

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