Backscattering enhancement of electromagnetic wave scattering from a perfectly conducting
two-dimensional random rough surface (three-dimensional scattering problem) is studied
with Monte Carlo simulations. The magnetic-field integral equation formulation is used with
the method of moments. The solution of the matrix equation is calculated exactly with an
efficient method known as the sparse-matrix flat-surface iterative approach. Numerical
examples are illustrated with 32,768 surface unknowns, surface areas between 256 and …

Predictions of an exact numerical model for scattering from a surface randomly rough in two
directions are compared with experimental data. The numerical model is based on Monte
Carlo simulation using an iterative version of the method of moments known as the sparse-
matrix flat-surface iterative approach (SMFSIA). Experimental data is obtained from
millimeter wave laboratory experiments in which the bistatic scattering patterns of fabricated
surfaces with known statistical parameters were measured. The surfaces studied have both …