New Computational Analytical Methods for Scattering and Propagation in RandomMedia

摘要

Scattering in inhomogeneous environments with irregular boundaries hasramifications for a number of practical problems of interest to the U. S. Army and other government agencies. Subdividing the problem into smaller and thereby more easily managed units has been successfully exploited. Under this grant new methods were developed that are particularly well suited to highly directed propagation. Propagation at low grazing angles relative to the boundary affords further simplification when backscatter can be neglected all together. New computation methods have been developed that can be used in place of the parabolic-wave-equation methods which remain restricted to low grazing angles.