多区域GRECO虚拟屏幕算法分析电大尺寸目标RCS  

A Multi-region-GRECO-based Virtual Screen Algorithm for Calculating RCS of Complex Targets with Large Electrical Size

作　　者：赵玉磊[1] 童创明[1] 鞠智芹[1] 

机构地区：[1]空军工程大学导弹学院,陕西三原713800

出　　处：《电讯技术》2012年第11期1827-1831,共5页Telecommunication Engineering

摘　　要：传统图形电磁计算(GRECO)方法所能计算的目标尺寸依赖于计算机屏幕的分辨率,因此无法计算电尺寸特别大的目标。为解决这一矛盾,采用了多区域方法,即通过将目标在屏幕上的成像分成多个部分分别显示以达到更细致地显示目标的要求。然而多区域方法无法识别各个区域结合部分的面元,因此提出了虚拟屏幕法,有效解决了这个问题。最后,通过数值算例验证了多区域GRECO虚拟屏幕法的有效性和准确性。The electrical size of target that Graphical Electromagnetic Computing （GRECO） can solve depends on the screen resolution of the computer. So GRECO can not analyse the target whose electrical size is very large. In order to solve the contradiction between the large electrical size of target and the small PC＇s resolution, the multi-region method is adopted,that is dividing the image of target on the screen to multiple parts and displaying them on different regions to display target better. But the multi-region method can not identify the triangle patches of the combing sites among the regions. So the virtual screen algorithm which can solve the problem is brought forward. Finally, the numerical results verify the effectiveness and the accuracy of the Multi-region-GRECO- based Virtual Screen Algorithm.

关 键 词：电大尺寸目标 RCS分析 图形电磁计算 多区域 虚拟屏幕法 

分 类 号：TN011[电子电信—物理电子学]