涂敷手征媒质的电大目标RCS仿真研究

Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (12): 2867-2869.

涂敷手征媒质的电大目标RCS仿真研究

吕丹1,2，童创明1,2，胡俊华3

1. 空军工程大学导弹学院，陕西三原 713800；2. 毫米波国家重点实验室，江苏南京 210096；3. 空军工程大学工程学院，陕西西安 710038

出版日期:2009-12-24 发布日期:2010-01-03

RCS simulation of electrically large target coated with chiral medium

LV Dan1,2，TONG Chuang-ming1,2，HU Jun-hua3

1. The Missile Inst.， Air Force Engineering Univ.， Sanyuan 713800， China；2. State Key Lab. of Millimeter Waves， Nanjing 210096， China；3. Engineering Inst.， Air Force Engineering Univ.， Xi’an 710038， China

Online:2009-12-24 Published:2010-01-03

摘要/Abstract

摘要：

手征媒质是一种新型的吸波材料，它是双各向同性媒质的一种。在手征媒质的本构关系中，手征参数有着非常重要的意义。采用非均匀有理B样条曲面建立目标模型，并将模型转化成易于计算的贝齐尔形式。然后，采用物理光学法计算了电大尺寸金属目标在涂敷手征媒质情况下的雷达散射截面。计算结果表明，不同的手征参数对涂敷目标的雷达散射截面有明显的影响，通过优化设计手征参数可使涂敷目标的雷达散射截面在一定的频率范围内明显减缩。

Abstract:

Chiral medium is a new absorbing material, which is one kind of biisotropic medium. In the constitutive relation, the chiral parameter is very important. The target is modeled by nonuniform rational Bspline surfaces, and they are transformed into Bézier surfaces. Then, the radar cross section of a metallic target coated with chiral medium is calculated by the physical optics method. The results show that the different chiral parameters have different influence on the radar cross section of the coated target. When the chiral parameter is optimized, the radar cross section of the coated target will reduce obviously within a range of frequencies.

吕丹1,2，童创明1,2，胡俊华3. 涂敷手征媒质的电大目标RCS仿真研究[J]. Journal of Systems Engineering and Electronics, 2009, 31(12): 2867-2869.

LV Dan1,2，TONG Chuang-ming1,2，HU Jun-hua3. RCS simulation of electrically large target coated with chiral medium[J]. Journal of Systems Engineering and Electronics, 2009, 31(12): 2867-2869.