一种低散射目标RCS行波解的C-R样条建模方法

A Method for the RCS Computation of Low scattering Targets with C-R Spline Fitting

ＣＲ（ＣａｔｍｕｌｌＲｏｍ）样条具有直观、稳定、灵活、不需反求控制顶点等优点，特别适用于具有复杂外形的飞行器进行几何描述．利用（Ｇ１，ｋ ＝ １） ＣａｔｍｕｌｌＲｏｍ 样条及其张量积曲面对低散射目标进行几何建模，并求解低散射目标行波雷达散射截面贡献，通过计算结果与实验结果比较，获得令人满意的结果．

C R(Catmull Rom) splines are vivid, steady, flexible and have no need to inverse solve control peaks, especially it is applicable to geometric description of aircrafts with complex shapes. ( G 1, k=1 ) Catmull Rom splines and curve surfaces of tensor product are used to obtain geometric modelling of low scattering targets, and solve the RCS contributions of travelling wave of low scattering targets. Then satisfactory results can be obtained by comparison between computation results and experimental results.