基于几何约束的GNSS接收机天线相位中心偏差测量方法研究

李晶晶; 李连福; 王德利; 曾九孙; 蔡晋辉; 缪东晶; 李建双

doi:10.3969/j.issn.1000-1158.2023.07.18

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计量学报 ›› 2023, Vol. 44 ›› Issue (7) : 1121-1127. DOI: 10.3969/j.issn.1000-1158.2023.07.18

无线电、时间频率计量

基于几何约束的GNSS接收机天线相位中心偏差测量方法研究

李晶晶¹,李连福²,王德利²,曾九孙¹,蔡晋辉¹,缪东晶²,李建双²

作者信息 +

Research on Measurement Method of GNSS Receiver Antenna Phase Center Offset Based on Geometric Constraints

LI Jing-jing¹,LI Lian-fu²,WANG De-li²,ZENG Jiu-sun¹,CAI Jin-hui¹,MIAO Dong-jing²,LI Jian-shuang²

Author information +

文章历史 +

摘要

分析了GNSS接收机天线相位中心与几何中心间的关系,提出了一种基于几何约束的GNSS接收机天线相位中心偏差的测量方法。通过2台或多台天线组合测量,利用天线几何中心在东北天坐标系下的已知坐标,仅需2个观测时段即可解算所有天线的相位中心水平偏差和相对垂直偏差。使用扼流圈天线进行不同观测时段长的相位中心稳定性分析实验;在不同天线组合、不同天线位置条件下,对相位中心偏差进行测量实验。实验结果表明:高精度的GNSS接收机天线相位中心偏差测量的观测时段长为24h,天线的相位中心水平偏差重复性≤0.13mm,相对垂直偏差重复性为0.67mm。

Abstract

By analyzing the relationship between the phase center and the geometric center of the GNSS receiver antenna, a measurement method for the phase center offset of GNSS receiver antenna based on geometric constraints was proposed. The method was measured by a combination of two or more antennas, using the known coordinates of the antenna geometric center in the east-north-top coordinate, the horizontal offset and relative vertical offset of the phase center of all antennas can be solved in only two observation periods. The phase center stability analysis experiment with different observation periods and the phase center offset measurement experiment under different antenna combinations and different antenna position conditions were carried out by using choke antennas. The experimental results show that the observation period of the high-precision GNSS receiver antenna phase center offset measurement is 24h. The repeatability of the horizontal offset of the phase center of the antenna is not more than 0.13mm, and the repeatability of the relative vertical offset is 0.67mm.

导出引用

李晶晶,李连福,王德利,曾九孙,蔡晋辉,缪东晶,李建双. 基于几何约束的GNSS接收机天线相位中心偏差测量方法研究[J]. 计量学报. 2023, 44(7): 1121-1127 https://doi.org/10.3969/j.issn.1000-1158.2023.07.18

LI Jing-jing,LI Lian-fu,WANG De-li,ZENG Jiu-sun,CAI Jin-hui,MIAO Dong-jing,LI Jian-shuang. Research on Measurement Method of GNSS Receiver Antenna Phase Center Offset Based on Geometric Constraints[J]. Acta Metrologica Sinica. 2023, 44(7): 1121-1127 https://doi.org/10.3969/j.issn.1000-1158.2023.07.18

中图分类号： TB973

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