摘要
根据GTD—MOM技术给出一种物理模式基的概念 ,并用之分析细理想导电圆柱的电磁散射 ,求解其雷达散射截面积 (RCS)。圆柱表面上的电流假设由三部分组成 :入射波的感应电流和圆柱两端的反射电流。该方法较传统的全域基矩量法减小了计算机内存 ,加快了计算速度 ,而且数值计算结果与全域基的结果吻合较好。
Physical model basis is given out on the basis of GTD MOM technique in this paper,and the scattered field and radar cross section of a perfectly conducting thin circular cylinder are calculated by using this method.The currents in the cylinder consist of three components:the current induced by the incident field and the reflected currents from the cylinder terminations. In comparison with MOM of entire domain basis,this method consumes less memory and fewer computing time,and results are in good agreement with those of MOM.
