一种GNSS接收机天线相位中心偏差的原位检测方法  

An In-Situ Detection Method for Phase Center Deviation of GNSS Receiver Antenna

作　　者：张风霜[1] 李文一[1] 刘浩[1] ZHANG Fengshuang;LI Wenyi;LIU Hao(The First Monitoring and Application Center,China Eearthguake Administra,Tianjin 300180,China)

机构地区：[1]中国地震局第一监测中心,天津300180

出　　处：《测试技术学报》2025年第2期238-246,共9页Journal of Test and Measurement Technology

基　　金：国家计量技术规范资助项目(G2022003)。

摘　　要：为了实现GNSS连续观测站接收机天线相位中心偏差的原位检测,在基线测量相对测定法的基础上,推导了等距基线臂法,依据该方法研发了便携式等距基线臂装置,并进行了现场观测数据实验。实验结果表明:3种不同型号GNSS天线的原位检测结果与其历年常规检测结果的算术平均值的差异值均小于其格拉布斯临界值;同一型号GNSS天线的多组原位检测结果的重复性小于0.2 mm,两种方法的10组对比检测结果无显著差异;等距基线臂法可在不干扰GNSS基准站连续观测的前提下实现天线相位中心偏差的原位检测。To realize the in-situ detection of antenna phase center deviation of GNSS continuous observa-tion station receiver,the equidistant baseline arm method is derived based on the relative method of base-line measurement.According to this new method,a portable equidistant baseline arm device is devel-oped,and field observation data experiments are carried out.The experimental results show that the dif-ference between the in-situ detection results of three different types of GNSS antennas and the arithmetic mean of their conventional detection results over the years is less than the Grubbs critical value.The repeatability of multiple sets of in-situ detection results of the same type of GNSS antenna is less than 0.2 mm.There is no significant difference in the results of 10 groups of contrast detection between these two methods.The equidistant baseline arm method can realize the in-situ detection of antenna phase center deviation without interfering with the continuous observation of GNSS reference stations.

关 键 词：天线相位中心偏差 原位检测 等距基线臂法 GNSS连续观测 

分 类 号：TM937.5[电气工程—电力电子与电力传动]