摘要
利用IGS-MGEX的观测数据,基于PPP观测方程,开展了BDS ZTD实时对流层参数估计试验,分析、评估其收敛时间与精度。试验结果表明,实时反演的BDS ZTD序列都与后处理模式下的GREC ZTD序列吻合较好。BDS-2、BDS-2+BDS-3的平均收敛时间分别为35 min 22 s和25 min 4 s,平均RMS值分别为22.04和10.82 mm,两种反演策略均不存在系统性偏差。
Based on the IGS-MGEX observation data,the BDS ZTD is estimated with GNSS PPP model in this study.The results show that all the real-time BDS ZTD series is in good agreement with the GREC ZTD series of the post-processing mode.The average convergence times of BDS-2 and BDS-2+BDS-3 are respectively 35 min 22 s and 25 min 04 s;their average RMS values are respectively 22.04 and 10.82 mm,and there is no systematic deviation.
作者
谭涵
TAN Han(Chongqing Survey Institute,Chongqing 401121,China)
出处
《测绘通报》
CSCD
北大核心
2022年第S02期24-28,共5页
Bulletin of Surveying and Mapping
作者简介
谭涵(1995—),女,工程师,主要研究方向为测绘地理信息。E-mail:tanhan@whu.edu.cn
