摘要
针对射线追踪法(shooting and bouncing ray,SBR)中反射路径计算,提出了采用反射张量表示单次和多次反射作用的方法,并进行了详细推导。对于同一反射路径,射线方向、极化方向的变化可以用同一个张量与原方向的点积表示。通过分析张量的运算,研究了单站情形不同极化下射线追踪法计算结果。算例表明,反射张量表示方法用于射线追踪法正确、有效,可方便地对各种构型的散射目标进行分析研究。
In reflective path calculation of shooting and bouncing ray(SBR),reflective tensor is used to imply single and multiple reflected effect and is inferred particularly.Incident direction and polarization after reflection are expressed in dot product of tensor with the original incident direction and polarization.Through analysis of tensor's calculation,results of different polarizations in mono-static are studied in SBR.The calculating examples show that reflective tensor in SBR is correct and efficient and can be used for analysis of various type of targets.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2011年第8期1685-1689,共5页
Systems Engineering and Electronics
基金
总装备部武器装备预先研究资助课题
关键词
计算电磁学
电磁散射
射线追踪法
张量
物理光学法
calculating electromagnatics
scattering
shooting and bouncing ray(SBR)
tensor
physical optics(PO)