大地测量与地球动力学2025，Vol.45Issue(6)：555-561,7.DOI:10.14075/j.jgg.2024.06.270
北极地区BDS观测量特性分析与动态定位性能评估
BDS Observations Characteristics and Assessment of Dynamic Positioning Performance in the Arctic Region
摘要
Abstract
This article is based on the kinematic GNSS observation from the 13th Chinese Arctic Ocean scien-tific expedition,which marked China's first arrival at the North Pole.It compares and analyzes the observa-tion quality of different signal from BDS and GPS in terms of carrier-to-noise ratio,multipath effects,pseud-orange noise,ionospheric delay rate of change,and evaluates their kinematic positioning performance.The re-sults show that the BDS's visible satellite count is still maintained at 8 to 14 close to the North Pole,and that the PDOP value is superior to that of GPS.In the Arctic region,the RMS of multipath combination observa-tion for BDS is around 0.2 m.The RMS of multipath combination observation for B1C and B2a is smaller than the B1I and B3I signal,but their pseudorange noise is higher.The results of kinematic pseudorange posi-tioning show that the positioning accuracy of BDS is comparable to the GPS,with the B1C/B2a ionosphere-free combination yields better positioning performance than the B1I/B3I combination.关键词
北斗卫星导航系统/北极地区/观测量质量/动态定位Key words
Beidou satellite navigation system/Arctic region/observations peculiarity/kinematic positioning分类
测绘与仪器引用本文复制引用
刘洋,柴洪洲,王敏,周英东,张乾坤,孙爽..北极地区BDS观测量特性分析与动态定位性能评估[J].大地测量与地球动力学,2025,45(6):555-561,7.基金项目
国家自然科学基金(42074014,42304043) （42074014,42304043）
智慧地球重点实验室开放基金(KF2023YB01-11). National Natural Science Foundation of China,No.42074014,42304043 （KF2023YB01-11）
Open Fund of Key Laboratory of Smart Earth,No.KF2023YB01-11. （）
