有限差分法在舰船雷达散射截面计算中的应用

Research on the application of FDTD method to RCS analysis of naval vessels

基于有限差分(FDTD)原理,采用VC++语言,编制了针对舰船外形设计的雷达散射截面计算程序,通过对二维简单模型的计算,证明FDTD方法及其程序计算结果是正确的,并对两种类型的二维舰艇模型在TM波和TE波辐射下的双站雷达散射截面积(RCS)进行计算和分析,为舰艇外形RCS隐身设计提供参考依据。

Based upon the finite-difference time-domain （FDTD） method, a program aiming at the calculation of the radar cross section （RCS） of navel vessel was compiled. After validating the FDTD method and the computational program by a simple 2-dimensional model, the authors calculated and analyzed the RCS of two types of naval vessel＇s models under the radiation of TM and TE wave. The numerical results of the RCS Nave sense to the stealth design for the navel vessels.