摘要
本文用修正的双三次参数样条拟合目标外形,可直接使用飞机外形CAD设计数据库,可拟合绕射点坐标,主曲率半径及主方向,短程线及其它一些几何参数,用一致几何绕射理论计算目标的雷达散射截面。计算精度为1dB左右,理论计算与实验结果吻合好。
A modified method of directly using bicubic parameters spline interpolation of plane contour, is introduced. Diffraction points, principal radii of curvature, principal directions, geodesic line and other, parameters are mimicked by using this method. The radar cross section calculation of an arbitrary perfectly conducting convex target, based on VGTD, attains an accuracy of about 1dB. The theoretical calculations show good agreement with the experimental results.
出处
《系统工程与电子技术》
EI
CSCD
1990年第12期18-24,共7页
Systems Engineering and Electronics
关键词
目标
隐身技术
散射载面
飞机
计算
Radar cross section, UGTD, Contour mimicry, Radar wave scattering.
