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dc.creatorBroschat, Shira L.
dc.creatorWang, Yanqiu
dc.description.abstractIn this paper we develop an extension of the small slope approximation (SSA) for scattering from randomly rough Dirichlet surfaces, which includes some multiple scattering. This extension is designated by SSA+. We focus on scattering at very low grazing angles where multiple scattering of both the incident and scattered fields is of importance. Numerical results for the SSA+ bistatic scattering cross-section for very low forward grazing angles are presented using the Gaussian roughness spectrum and for both very low forward and very low backward grazing angles using the Pierson–Moskowitz and modified power law spectra. The results are restricted to an angle of incidence of 80°. It is shown that when the lowest-order SSA gives reasonably accurate results, the SSA+ increases the accuracy up to at least the final 0.2° of grazing in the forward direction. In the backward direction, the SSA+ gives good results for the Pierson–Moskowitz spectrum, but the results are less dramatic.en_US
dc.publisherTaylor and Francisen_US
dc.rightsIn copyright
dc.subjectSmall slope approximationen_US
dc.subjectLow grazing anglesen_US
dc.titleThe SSA+ for scattering from dielectric surfaces at very low grazing angles
dc.description.citationWang, Y., and S.L. Broschat, ���The SSA+ for scattering from dielectric surfaces at very low grazing angles,�� Waves in Random and Complex Media, Vol. 21, No. 1, 57-68, Feb. 2011. DOI: 10.1080/17455030902763185.

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  • Broschat, Shira
    This collection features research and educational materials by Shira Broschat, Professor and Curriculum Coordinator for the School of Electrical Engineering and Computer Science at Washington State University.

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