海洋测绘2024，Vol.44Issue(4)：1-5,11,6.DOI:10.3969/j.issn.1671-3044.2024.04.001
附加距离约束的GPS/BDS海上长基线差分定位及分析
GPS/BDS maritime long baseline differential positioning and analysis with additional distance constraints
摘要
Abstract
In order to weaken the influence of systematic errors such as atmospheric delay residuals on positioning results in longbaseline differential positioning at the sea,a differential positioning function model with systematic errors and a longbaseline differential positioning function model with distance constraints between antennas are established.The influence of conditions on long baseline differential positioning results are also analyzed.Tests were conducted using multiple receivers on shore and ships.The results show that additional system parameters can well absorb the impact of systematic errors on positioning results in 500 km baseline differential positioning,and the positioning accuracy of GPS/BDS combination is significantly improved.After adding reasonable distance constraints to the long baseline of 442～451 km,the positioning error is reduced to within 1dm.The additional system parameters and reasonable additional inter-antenna distance constraint methods in this article can provide a reference for longbaseline differential positioning at the sea.关键词
差分定位/海洋定位/长基线/系统误差/距离约束Key words
differential positioning/marine positioning/long baseline/systematic error/distance constraint分类
天文与地球科学引用本文复制引用
张亚军,曾安敏,郑楠,王骄阳..附加距离约束的GPS/BDS海上长基线差分定位及分析[J].海洋测绘,2024,44(4):1-5,11,6.基金项目
国家重点研发计划(2020YFB0505801) （2020YFB0505801）
国家实验室基金(2021WHZZB1001) （2021WHZZB1001）
国家自然科学基金(41931076). （41931076）
