二维插值在腔体散射特性分析中的应用

Application of 2-D Interpolation in Calculating the RCS of Arbitrary Shaped Cavities

本文详细讨论了二维插值方法在腔体散射特性分析中应用的具体问题．诸如建立腔体内表面插值函数时必须考虑的坐标系选取及变换；插值样条函数的构造；表面法向及曲率的计算提出了任意腔体内的射线轨迹追踪通用算法.

This paper solved the problem that are essential to the application of 2-D interpolation in analyzing the RCS of arbitrary shaped cavities. Such problems include selecting and changing of coordinate When setting up the inteedation function of the cavity's inner surface, constructing the interpolation function and calculating the normal and curvature of the surface. This paper also discussed a general algorithm of tracking the rays in arbitrary cavities.