Mathematical Modeling of Bistatic RCS Determination by Values of the Near-Field Set on a Part of the Spherical or Cylindrical Surface

Abstract

Near-field measurement for scanning over a truncated cylindrical surface in two-dimensional case and spherical surface in three-dimensional case is simulated for the diffraction on a perfectly conducting cylinder of finite size. Analytical and numerical solutions for two-dimensional case are in good agreement. Field expansions by cylindrical functions and by Slepian functions are analyzed and compared in three-dimensional case. Results of numerical analysis are presented.