任意空间位置雷达天线反射面拟合与评定技术

为测定空间一任意放置的抛物面形状的天线反射面及其形变量，提出了基于天线表面离散点坐标进行抛物面拟合及其误差评定的方法。论述了运用Jacobi变换方法来处理系数相关性问题，并探讨了将通用系数形式转化为标准旋转抛物面方程的方法，从而求得抛物面在空间的位置、方向和大小。阐述了一种新颖的基于迭代思想的抛物面误差评定方法。实验结果表明该方法拟合精度可达0．1％，适用性广。

Techniques of Reflector Surface Fitting and Evaluation of Radar Antenna Located at Arbitrary Position in Space

In order to derive the equations of paraboloid surface and its distortion in space, in this paper we put forward a method of paraboloid surface fitting and error estimation by using coordinates of points spreaded around it. Jacobi transformation is used to find correlations among coefficients. Then we introduce a method to transform general conicoid to standard paraboloid equa- tion. The location, direction and size of paraboloid are obtained. The paper puts forward a novel method of error estimation based on iteration. The results indicate that the precision can achieve 0.1% and has wide applicability.