【作者】 张亮亮； 张云华； 何思远； 朱国强；

【Author】 Liang-Liang Zhang;Yun-Hua Zhang;Si-Yuan He;Guo-Qiang Zhu;Wuhan University;

【机构】 武汉大学；

【摘要】 提出一种复杂介质目标散射中心参数化建模正向方法。首先,从目标的几何模型出发,借助弹跳射线法,通过对空间射线的标记、归类,研究并发展了一套正向的复杂介质目标散射中心提取方法。然后,采用属性散射中心模型形式,对复杂介质目标建立散射中心参数化模型,在此过程中,提出了一套适用于介质目标完全正向的模型三维位置参数推算方法。最后,简化机翼算例验证了该方法的可行性和有效性。更多还原

【Abstract】 A forward approach to establish parametric scattering center models for complex dielectric targets is proposed. Firstly this paper proposes a new method based on shooting and bouncing ray(SBR) and ray clustering to extract the scatter centers directly from complex dielectric targets CAD model. Then, based on the physical scattering center model proposed by Gerry et al[1],parametric scattering center model for complex dielectric target is established. In this process, we firstly proposed a new forward method to determine the 3-D scattering center position for complex dielectric targets. finally, the feasibility and effectiveness of the method is proved by an simplified wing model.更多还原