并行PO分析电大尺寸复杂军事目标的电磁散射

利用基于PC集群MPI并行平台的并行PO方法计算了电大尺寸复杂军事目标-导弹与飞机的电磁散射。根据MPI并行平台的特点,给出了将PO三角面元按照编号循环分配到不同进程,进行并行遮挡判断的详细过程。通过对比不同进程的计算时间,给出了本文方法的并行加速比,结果表明了该并行方案求解电大目标散射问题的高效性。计算了电大尺寸导弹与飞机目标的双站RCS,并与FEKO软件结果进行了比较,证明了方法的正确性。

Analysis of EM Scattering Characteristic from the Complex Martial Target with Electrically Large Size by Parallel PO

Based on the MPI of PC clusters, the parallel PO is applied for the solution of EM scattering from the electrically large complex martial targets - missile and flight. According to the property of MPI, the occlusion identification is parallelized through cyclically scheduling the PO triangles to different processes by their numbers. The parallel speedup factor is shown by comparing the computational time of different processes, which proved the effectiveness of the parallel method for solving electrically large electromagnetic problems. The bistatic RCS of missile and flight targets with electrically large size is calculated. The numerical results are compared with those obtained by FEKO, which validates the correctness of the method.