论文部分内容阅读
研究了半空间内(海面,地面)电大尺寸涂敷目标散射的高频求解方法.将半空间并矢格林函数引入物理光学方法中,对半空间复杂环境影响进行考虑,并利用阻抗边界条件考虑涂敷目标表面的复杂电磁散射,推导出半空间物理光学分析方法,同时结合图形电磁学,对半空间电大涂敷目标进行消隐判断,提取像素面元法矢量和深度缓存等有效信息,快速有效地计算了半空间电大涂敷目标的雷达散射截面.数值结果证明了方法的有效性和准确性.
A high-frequency method for solving large-scale scattering of electric targets in half space (sea surface and ground) is studied.The half-space dyadic Green’s function is introduced into the physical optics method to consider the influence of complex environment in half-space, and the impedance boundary conditions are considered The complex electromagnetic scattering of the target surface is deduced and the method of semi-space physical optics analysis is deduced. Combined with the pattern electromagnetism, the target of half-space electric large coating is blanked, valid information such as pixel bin depth vector and depth buffer is extracted, The radar cross section of the target in half-space electric coating is calculated effectively, and the numerical results prove the effectiveness and accuracy of the method.