Scattering models for Reverberation Modeling Workshop I problems

Abstract

For many of the problems posed for Reverberation Modeling Workshop I, the boundary roughness was presented in terms of roughness spectra. Models and/or tables were also supplied for the bistatic scattering cross section and for the coherent reflection loss. Integral equation simulations were used to verify the accuracy of the bistatic scattering cross sections, and rough boundary PE simulations were used to verify the accuracy of the coherent reflection losses. The results of this work will be briefly summarized. The issue also arises for reverberation simulations whether the coherent reflection loss is appropriate for the boundary loss, or whether some other loss model is more appropriate, or whether the loss due to roughness should be simply ignored. This issue will be discussed in light of rough boundary PE simulations. [Work supported by ONR.]