摘要: |
涂敷雷达吸波材料(RAM)是目前最为常用的一种减缩雷达散射截面(RCS)的方法
,可以在全角度下减小雷达目标的RCS值。采用非均匀有理B样条(NURBS)参数曲面模拟目
标外形,运用物理光学法计算电大尺寸部分涂敷目标的RCS。结果显示,在目标一定的部位
上
而不是在所有部件上涂敷吸波材料,在一定的观察点上仍然能起到减小RCS的作用,既满足
了角度范围的需要又节省了RAM的使用费用。 |
关键词: 雷达吸波材料 部分涂敷目标 雷达散射载面 非均匀有理B样
条 物理光学法 |
DOI: |
|
基金项目:毫米波国家重点实验室基金资助项目(K200907) |
|
RCS Simulation of Partially Coated Targets |
LV Dan,TONG Chuang-ming |
(The Missile Institute,Air Force Engineering University, Sanyuan 713800, Chi
na;State Key Laboratory of Millimeter Waves, Nanjing 210096, China) |
Abstract: |
The radar cross section (RCS) of target coated with radar abs
orbing materials (RAM) will be reduced at all observation points. The target is
modeled with nonuniform rational Bspline surfaces (NURBS), and the RCS of p
artially coated target is calculated by physical optics method. The results show
that the RCS of partially coated target is still reduced at certain observation
points,which not only meets the angle requirement but also reduces the cost of R
AM. |
Key words: radar absorb material(RAM) partially coated targets radar cross section(RCS) no
n uniform rational B-spline(NURBS) physical optics method |