CAJ | 학술논문

针对应用时域有限差分法数值计算复杂目标雷达散射截面（ Radar Cross Section， RCS）难的问题，基于Auto?CAD开发环境，应用AutoLISP编程语言进行了二次开发，建立散射体几何—电磁参数描述文件，时域有限差分法（ FDTD）通过调用该文件可以数值计算复杂目标RCS。为了验证该方法的正确性，以经典的三维实心球体为例，建立了三维实心球的几何—电磁参数描述文件，通过FDTD方法计算了三维实心球的RCS，将计算结果与经典文献中的结果进行了对比，证明了该方法的正确性。
침대응용시역유한차분법수치계산복잡목표뢰체산사절면（ Radar Cross Section， RCS）난적문제，기우Auto?CAD개발배경，응용AutoLISP편정어언진행료이차개발，건립산사체궤하—전자삼수묘술문건，시역유한차분법（ FDTD）통과조용해문건가이수치계산복잡목표RCS。위료험증해방법적정학성，이경전적삼유실심구체위례，건립료삼유실심구적궤하—전자삼수묘술문건，통과FDTD방법계산료삼유실심구적RCS，장계산결과여경전문헌중적결과진행료대비，증명료해방법적정학성。
It is difficult to calculate the RCS of complex object by using the FDTD method.To solve this problem,the AutoLISP programming language embedded in AutoCAD is applied.Based on this language,the geometry and electromagnetic parameters document of scatter can be established.By transferring this document,the RCS of complex object can be calculated by FDTD approach.To validate the correctness of this method,the 3D solid sphere is taken as an example. The geometry and electromagnetic parameters document of this sphere is obtained.Also,the RCS of this sphere is calculated by using FDTD approach.In order to validate the results,this paper compares the results in classical literatures with them.Results show that the results in this paper are correct.