A new technique named local aperture grid optimization arithmetic was presented to improve the efficiency of the classical method. The chief aperture that contains all the rays in the incident field was divided into local aperture grids, on which selected sampling rays was calculated to determine its contribution level.Pre-defined calculation level was used to determine whether to calculate the rest rays on the local aperture or not. Therefore the rays that have no or little RCS contribution were neglected and the calculating time consumed on intersecting judgment was reduced. By programming examination, the optimization arithmetic was proved to be fairly precise and remarkably efficient, and also applied.
Jin Jianming, Ling Feng, Carolan S T, ��et al��. A hybrid SBR/MOM technique for analysis of scattering from small protrusions on a large conducting body [J].IEEE Transactions on Antennas and Propagation.1998,46(9):1349-1357
Wang Shuenyih, Jeng Shyhkang. A compact RCS formula for a dihedral corner reflector at arbitrary aspect angles[J] IEEE Transactions on Antennas and Propagation, 1998,46(7):1112~1113
Ling Hao, Chou Richee, Lee Shungwu. Shooting and bouncing rays:Calculating the RCS of an arbitrarily shaped cavity[J] IEEE Transactions on Antennas and Propagation, 1989,37(2):194~205
����. ��ת������ַ������β��ƽβ��ϵ�RCS[J] ������,1994,(3):1~9 Ma Dongli. Calculation the coupling RCS of empennages by a method of rotating aperture integral method[J] Stealth Technology, 1994,(3):1~9(in Chinese)
������. ������Ҽܽṹ�ĵ�RCS���μ����㷽���о� . ����:�������պ����ѧ�����������Ӧ����ѧϵ,1999 Huang Peilin. Low RCS reform and calculating method research of the wing-pylon structure . Beijing:Dept. of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics,1999(in Chinese)