ABSTRACT Existing phase center evaluation methods are based on various approximations of the phase of the electric field, thus leads to a systematic error. Given the phases measured at some far-field points, this paper proposes to compute the projected phases on a sphere and minimize the range of these projected phases by the polytope algorithm to determine the phase center. Without any approximation in the formulas, the proposed method is more accurate than existing methods, which is shown by a dipole simulated with the Method of Moment (MoM), a horn and a waveguide slot array measured in an anechoic chamber.

中文翻译：

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一种计算 3D 相位中心的新算法

摘要 现有的相位中心评估方法基于电场相位的各种近似值，因此会导致系统误差。给定在一些远场点测量的相位，本文提出计算球体上的投影相位，并通过多面体算法最小化这些投影相位的范围以确定相位中心。在公式中没有任何近似值的情况下，所提出的方法比现有方法更准确，这可以通过使用矩量法 (MoM) 模拟的偶极子、在消声室中测量的喇叭和波导缝隙阵列来证明。