Effective estimation of 2-D monostatic radar cross sections from near-field measurements

A novel approach for the efficient evaluation of the monostatic radar cross section (RCS) from near-field bistatic RCS in two-dimensional geometry is presented. The monostatic RCS is evaluated exploiting only the near-field data relative to an angular region centered on the direction of interest whose size is the minimum possible and depends on the size of the scatterer and on its distance from the measurement zone. In such a way a fast and efficient algorithm is obtained.