Modeling and assessment of multi-frequency GPS/BDS-2/BDS-3 kinematic precise point positioning based on vehicle-borne data
Modeling and assessment of multi-frequency GPS/BDS-2/BDS-3 kinematic precise point positioning based on vehicle-borne data
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基于车载数据的多频GPS/BDS-2/BDS-3运动精密单点定位建模与评估
DOI：
10.1016/j.measurement.2021.110453
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发表时间：
2021-11
期刊：
影响因子：
5.6
通讯作者：
Peng Junhuan
中科院分区：
文献类型：
--
作者：
Lv Jie;Gao Zhouzheng;Kan Junyao;Lan Ruohua;Li You;Lou Yilan;Yang Honglei;Peng Junhuan
2020年6月23日，第55颗北斗三号卫星发射升空，北斗卫星导航系统（BDS）已具备全球服务能力。目前，北斗卫星导航系统以第二代北斗系统（北斗二号，15颗三频信号卫星）和第三代北斗卫星导航系统（北斗三号，30颗卫星，五频信号提供服务）为基础运行。为了充分利用BDS-2+BDS-3信号（B1I、B2I、B3I、B1C、B2a），本文提出了一种利用单/双/三频BDS-2/BDS-3数据的无差分、无组合的精密单点定位（PPP）模型。结果表明，基于新信号的BDS-3 PPP的均方根（RMS）值优于BDS-2（B1I+B3I），但差于BDS-3（B1I+B3I）。总体而言，三频PPP与双频PPP接近，但在北向、东向和垂直分量上较单频PPP有明显改善。与GPS+BDS-2 PPP的定位精度相比，GPS+BDS-3 PPP的定位精度明显提高，尤其是水平分量。北斗二号和北斗三号联合使用时，GPS+北斗二号+北斗三号的定位性能在水平和垂直方向上都有显着提升。而且，与BDS-2 PPP相比，BDS-3（特别是B1C+B2a）和BDS-2+BDS-3 PPP的收敛时间明显加快。
BeiDou Navigation Satellite System (BDS) has got the global service capability after the launch of the 55th BDS-3 satellite on June 23, 2020. Currently, BDS is operated based on both the second generation BDS (BDS-2, with 15 satellites transmitting triple-frequency signals) and the third generation BDS (BDS-3, with 30 satellites providing services from five frequency signals). To make full use of BDS-2+BDS-3 signals (B1I, B2I, B3I, B1C, and B2a), this paper introduces an undifferenced and uncombined Precise Point Positioning (PPP) model by using single/dual/triple frequencies BDS-2/BDS-3 data. Results illustrate that the Root Mean Square (RMS) value of BDS-3 PPP based on new signals are better than BDS-2 (B1I+B3I), but worse than BDS-3 (B1I+B3I) . Generally, triple-frequency PPP is close to that of dual-frequency PPP, but it is improved significantly in north, east and vertical components comparing with single-frequency PPP. Compared to the positioning accuracy of GPS+BDS-2 PPP, those of GPS+BDS-3 PPP are improved obviously, especially in the horizontal components. While using BDS-2 and BDS-3 together, the positioning performance of GPS+BDS-2+BDS-3 is upgraded significantly in both horizontal and vertical directions. Moreover, the convergence time of BDS-3 (especially B1C+B2a) and BDS-2+BDS-3 PPP are accelerated visibly comparing with that of BDS-2 PPP.
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考虑系统间偏差随机模型的BDS-2和BDS-3组合精密时频传递建模与分析
影响因子：
5
作者：
Guoqiang Jiao;Shuli Song;Qinming Chen;Chao Huang;Ke Su;Zhitao Wang;Na Cheng
通讯作者：
Na Cheng
DOI：
--
发表时间：
1992
期刊：
--
影响因子：
--
作者：
Jiun-Tsong Wu;Sien-Chong Wu;G. Hajj;W. Bertiger;S. Lichten
通讯作者：
Jiun-Tsong Wu;Sien-Chong Wu;G. Hajj;W. Bertiger;S. Lichten
影响因子：
2.6
作者：
Gao, Zhouzheng;Li, Tuan;Schuh, Harald
通讯作者：
Schuh, Harald
影响因子：
4.9
作者：
Liang Chen;Min Li;Ying Zhao;Zhigang Hu;Fu Zheng;C. Shi
通讯作者：
Liang Chen;Min Li;Ying Zhao;Zhigang Hu;Fu Zheng;C. Shi
影响因子：
4.4
作者：
Brunini, C.;Azpilicueta, F.
通讯作者：
Azpilicueta, F.