Precise values for absolute receiver antenna phase centre corrections (PCC) are one prerequisite for high-quality GNSS applications. Currently, antenna calibrations are performed by different institutes using a robot in the field or in an anechoic chamber. The differences between the antenna patterns are significant and require a sound comparison concept and a detailed study to quantify the impact on geodetic parameters, such as station coordinates, zenith wet delays (ZWDs) or receiver clock estimates. Furthermore, a discussion on acceptable pattern uncertainties is needed. Therefore, a comparison strategy for receiver antenna calibration values is presented using a set of individually and absolutely calibrated Leica AR25 antennas from the European Permanent Network (EPN), both from the robot (Geo++ company) and from the chamber approach (University of Bonn). Newly developed scalar metrics and their benefits are highlighted and discussed in relation to further structural analysis. With our metrics, properties of 25 patterns pairs (robot/chamber) could be used to successfully assign seven individual groups. The impact of PCC on the estimated parameters depends on the PCC structure, its sampling by the satellite distribution and the applied processing parameters. A regional sub-network of the EPN is analysed using the double difference (DD) and the precise point positioning (PPP) methods. For DD, depending on the antenna category differences in the estimated parameters between 1 and 12 mm are identified also affecting the ZWDs. For PPP, the consistency of the observables, i.e. potential differences in the reference point of carrier phase and code observations, additionally affects the distribution among the different parameters and residuals.

绝对接收机天线相位中心校正 (PCC) 的精确值是高质量 GNSS 应用的先决条件之一。目前，天线校准由不同的机构在现场或消声室中使用机器人进行。天线方向图之间的差异很大，需要一个合理的比较概念和详细的研究来量化对大地参数的影响，例如站坐标、天顶湿延迟 (ZWD) 或接收器时钟估计。此外，需要讨论可接受的模式不确定性。因此，使用来自欧洲永久网络 (EPN) 的一组单独和绝对校准的 Leica AR25 天线，提出了接收器天线校准值的比较策略，来自机器人（Geo++ 公司）和腔室方法（波恩大学）。新开发的标量指标及其好处在进一步的结构分析中得到强调和讨论。使用我们的指标，25 个模式对的属性 (机器人/腔室）可用于成功分配七个单独的组。PCC 对估计参数的影响取决于 PCC 结构、卫星分布的采样和应用的处理参数。使用双差（DD）和精确点定位（PPP）方法分析EPN的区域子网。对于 DD，根据天线类别，估计参数在 1 到 12 毫米之间的差异也被确定为影响 ZWD。对于 PPP，观测值的一致性，即载波相位和代码观测值的参考点的电位差，还影响不同参数和残差之间的分布。