摘要
首次介绍了复杂目标近场散射计算的可视化方法。采用非均匀有理B样条曲面（NURBS）精确构造任意形状散射体，结合几何体近场透视变换和Z－Buffer技术实现了基于Win－dows平台的近场散射计算。提出广义雷达散射截面的概念并给出了若干算例。该方法充分利用了计算机3D图形设备的几何运算能力，运算速度快，精度高，可扩展性好。
A visual method for near-field scattering of complex targets is introduced. Arbitrarily shaped scatterers are precisely modeled by means of Non-Uniform Rational B-Spline Surfaces (NURBS). By using perspective transformation and Z-Buffer technique, a Windows based near-field computation is implemented. The concept of Generalized Radar Cross Section is introduced. The efficient and accurate algorithm is validated by numerical results thanks to the full utilization of computer 3D devices.
出处
《电波科学学报》
EI
CSCD
1998年第3期241-244,260,共5页
Chinese Journal of Radio Science
关键词
电磁散射
近场
可视化
雷达散射截面
Electromagnetic scattering Near-field Visualization Generalized radar cross section(GRCS)
