Browsing Department of Materials Science and Metallurgy by Author "Spivack, Mark"
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Efficient boundary integral solution for acoustic wave scattering by irregular surfaces
Rath-Spivack, Orsola; Spivack, Mark (ElsevierEngineering Analysis with Boundary Elements, 2017-10-01)The left–right operator splitting method is studied for the efficient calculation of acoustic fields scattered by arbitrary rough surfaces. Here, the governing boundary integral is written as a sum of left- and right-going ...
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Rough surface reconstruction at grazing angles by an iterated marching method.
Chen, Yuxuan; Spivack, Mark (Optical Society of AmericaJournal of the Optical Society of America. A, Optics, image science, and vision, 2018-04)An iterated marching method is presented for reconstruction of rough perfectly reflecting 1-dimensional surfaces from scattered data arising from a scalar wave at grazing incidence. This is based on coupled inte- gral ...
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Rough surface scattering via two-way parabolic integral equation
Spivack, Mark; Spivack, OR (EMW PublishingProgress In Electromagnetics Research M, 2017-04-23)This paper extends the parabolic integral equation method, which is very effective for forward scattering from one-dimensional rough surfaces, to include backscatter. This is done by applying left-right splitting to a ...
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Statistical moments for rough surface scatter from two-way parabolic integral equation at low grazing angles
Spivack, Mark; Rath-Spivack, OrsolaThe moments of a plane wave scattered at low grazing angles from a one-dimensional perfectly reflecting rough surface are considered. The mean intensity and autocorrelation of the scattered field and the corresponding ...