说明：  用c++语言，编写了基于FDTD的三维散射体雷达散射截面的计算程序。程序注释清楚。稍微改动必要的数据就可以直接使用。已经多次验证了程序的正确性。
(Using c++ language, compiled based on three-dimensional FDTD radar cross section scattering calculation program. Program notes clearly. Slightly change the necessary data can be used directly. Has repeatedly verified the correctness of the program.)