摘要
研究装甲车表面识别问题,针对研究装甲步战车这类电大目标时,因其电磁散射特性复杂而不易求解的问题,提出利用有限元法(Finite Element Method,FEM),建立装甲步战车三维缩比模型,用物理光学法(Physical Optics,PO)描述装甲步战车电磁散射问题,通过高频电磁仿真软件HFSS在理想匹配单元层(Perfectly Matched Layer,PML)边界下对模型电磁散射截面(Radar Cross Section,RCS)特性进行计算仿真,获取了目标装甲在不同的频段、入射角、材料以及不同姿态下的电磁散射特性,对雷达目标识别以及装甲车辆隐身与反隐身研究提供重要的技术支撑。
In order to solve the problem of electromagnetic （EM） scattering characteristics of electrically large and complex objects, especially armored vehicles, a method was put forward to construct 3D scale model of infantry fight- ing vehicle（IFV） by the finite element method（FEM） and describe electromagnetic problems by the physical optics （PO）. The RCS of the model was calculated and simulated under different conditions through the Ansoft HFSS simu- lation system under the perfectly matched layer （ PML）, including different frequencies, incident angles, polariza- tions, materials and different attitudes. The simulation result show that the mthod provides a technical support for the radar target recognition and the research of stealth and anti-stealth of armored vehicle.
出处
《计算机仿真》
CSCD
北大核心
2014年第3期34-37,125,共5页
Computer Simulation
基金
国家自然科学基金资助项目(61174219)
