一种用于复杂目标高频电磁散射计算的高效方法  

An efficient scheme for calculating high frequency EM scattering from complex objects

作　　者：王海彬[1] 

机构地区：[1]南京电子技术研究所,江苏南京210013

出　　处：《电波科学学报》2009年第1期65-70,共6页Chinese Journal of Radio Science

基　　金：中国博士后科学基金(20080431130);2008南京市在站博士后资助项目

摘　　要：提出一种快速准确计算电大复杂目标高频电磁散射的方法。采用面片模型,对于不会造成二次反射的面片,用物理光学法直接计算其散射场;对于能够造成二次反射的面片,从其表面发出射线管,用弹跳射线法计算多次反射效应。还给出了典型目标单站雷达散射截面计算结果。通过与纯粹弹跳射线法、矩量法以及测量值的比较,验证了该方法的有效性和准确性。An efficient scheme is presented for predicting radar cross section of large complex objects. Objects are described by facet model. For the facets reflecting EM wave to other parts of objects; SBR technique is employed to calculating multi-bounce effects with rays be extended from the points on the facets. Scattering contribution of other facets is dealt by physical optics method. RCS results obtained by this scheme are compared with those obtained by pure SBR, MOM and measurement. The improvement in accuracy and efficiency is validated.

关 键 词：弹跳射线法 射线管 高频电磁散射 雷达散射截面 

分 类 号：TN011[电子电信—物理电子学]