A DETERMINISTIC METHOD FOR GENERATING A SCATTERING-CENTER MODEL TO RECONSTRUCT THE RCS PATTERN OF COMPLEX RADAR TARGETS

This paper presents a deterministic method to establish the scattering -center model for complex radar targets, By this method, high frequenc y techniques including physical optics, physical theory and diffractio n and shooting and bouncing rays are used to establish scattering cent ers, Numerical results show that, by using this method with only singl e-frequency scattering centers at large aspect increments, the RCS pat tern at finer aspect increments is well reconstructed; besides, it can be extended to predict the RCS pattern at any frequency of interest i n a required narrow bandwidth, Good agreement between direct RCS calcu lation, scattering-center model and measured results is obtained.