RCS analysis and calculation system in all-band region based on object-oriented and visualization design

A software scheme for radar cross sections (RCS) of complex radar targets analysis and calculation system (named RCSAS1.0 version) in the all-band region is presented. The software system includes three subsystems: pre-processing (target geometric modeling generation and processing), electromagnetic calculation (EM solver) and post-processing (results analysis). The target surface is modeled with popular CAD software or Catmull-Rom geometrical continuity spline in the first subsystem. The second subsystem includes low-frequency, high-frequency and important aircraft components and RCS calculation. Low-frequency RCS is obtained by using the MOM based on the rescan loop method and CG-FFT; high-frequency RCS computation is solved by greco (graphical electromagnetic computing) method. The third subsystem is results analysis. The whole software system is developed and integrated based on object-oriented and scientific computing visualization design. The standard Windows interface is adopted for the software interface; it is compact., friendly, and easily handled for the user, and has a perfect on-line help system. Meanwhile in this paper, the computational results agree with the measurement results, and the effectiveness of this computation system is demonstrated. The error between computing and measuring results for typical objects is less than 1 dB, and less than 3 dB for complex radar targets.