Third, solve electromagnetic wave propagation of a three-dimension concave object by symplectic Geometrical Theory, and get a better field solution in caustic field comparing with other methods.
三 利用辛几何理论求解电磁波在三维凹面体散射中的传播问题，与其他几种数值解相比较，验证其正确有效性。
参考来源 - 基于辛几何理论求解凹面体电磁散射·2,447,543篇论文数据，部分数据来源于NoteExpress
二利用辛几何理论求解电磁波在二维凹面体散射中的传播问题，与经典的GO解比较，特别在焦散区得到较理想的场解。
Second, solve electromagnetic wave propagation of two-dimension concave objects by symplectic Geometrical Theory, and get better field solutions in caustic field2)comparing with classical GO method.
采用有限元-人工透射边界法求出平面波在无限长圆柱上的散射近场，并与解析解进行比较，进而对几种凹面体电磁波散射近场求解。
A finite element artificial transmitting boundary method is presented for electromagnetic wave scattering from a perfectly conducting circular cylinder and a number of concave objects.
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