CAJ | 학술논문

研究了自由空间复杂导体目标的太赫兹(THz)雷达散射截面(RCS)的高频求解方法。将并矢格林函数引入物理光学方法中，对自由空间环境进行考虑，推导出自由空间物理光学分析方法，并结合图形电磁计算(GRECO)方法，采用分区显示算法改进后，在Visual C++2010程序中实现目标的OpenGL显示，对自由空间复杂导体目标进行消隐判断，提取像素面元法矢量和深度缓存等有效信息，计算了自由空间复杂导体目标的THz RCS。最后，将程序计算结果与FEKO软件仿真结果进行比较，结果证明该方法的有效性和准确性。该研究结果为THz雷达未来在军事、天文和遥感等领域的应用提供了重要依据和方法。
연구료자유공간복잡도체목표적태혁자(THz)뢰체산사절면(RCS)적고빈구해방법。장병시격림함수인입물리광학방법중，대자유공간배경진행고필，추도출자유공간물리광학분석방법，병결합도형전자계산(GRECO)방법，채용분구현시산법개진후，재Visual C++2010정서중실현목표적OpenGL현시，대자유공간복잡도체목표진행소은판단，제취상소면원법시량화심도완존등유효신식，계산료자유공간복잡도체목표적THz RCS。최후，장정서계산결과여FEKO연건방진결과진행비교，결과증명해방법적유효성화준학성。해연구결과위THz뢰체미래재군사、천문화요감등영역적응용제공료중요의거화방법。
The high-frequency method for the prediction of radar cross section (RCS) of complex conductive targets in the terahertz (THz) band in free space was presented. In order to consider the scattering fields of the complex perfectly electric conducting (PEC) targets in free space, the Green′s function was introduced into the conventional physical optics method. Combining the graphical electromagnetic computing (GRECO) method and using the partition display algorithm to improve, the shadow regions were eliminated by displaying lists technology of OpenGL to rebuild the complex targets, and the geometry information was attained by reading the color and depth of each pixel. The THz RCS of complex conductive targets can be exactly calculated in free space. The RCS comparison between GRECO prediction and simulation of FEKO software proves the validity and accuracy of the proposed method. The results provides an important basis and method for the application of THz radar in many fields such as military, astronomy and remote sensing in the future.