Research and Evaluation of BDS Real-time Wide-area Precise Positioning Service System

被引：0
|
作者：
Shi C. [1 ,2 ]
Zheng F. [1 ]
Lou Y. [1 ]
机构：
[1] GNSS Research Center, Wuhan University, Wuhan
[2] School of Electronic and Information Engineering, Beihang University, Beijing
来源：
| 1600年 / SinoMaps Press卷 / 46期
关键词：
BDS real-time wide-area precise positioning service system; National BDS augmentation service system; Real-time precise point positioning;
D O I：
10.11947/j.AGCS.2017.20170284
中图分类号：
学科分类号：
摘要：
By adopting the real-time observations of IGS, multi-GNSS experiment (MGEX) and national BDS augmentation service system (NBASS), BDS real-time wide-area precise positioning service system is developed, which can generate high accuracy BDS real-time orbits, clocks and ionosphere products and provide centimeter-, decimeter-and meter-level positioning service with different positioning modes including BDS dual-and single-frequency precise point positioning (PPP) and single point positioning (SPP). The evaluation results of real-time products show that the user range error (URE) of BDS real-time orbits and clocks is about 2.0 cm and the accuracy of real-time ionosphere products is better than 4.0 TECU. The performance of real-time kinematic positioning at the 95% confidence level is evaluated by real-time stations across China. It reveals that the BDS dual-frequency PPP shows significant regional characteristic, the accuracy in high-latitude and western fringe region is about 0.2 m and 0.3 m in the horizontal and vertical component, respectively, while the horizontal accuracy is better than 0.1 m and the vertical accuracy is better than 0.2 m in the midlands, which is close to the accuracy of GPS real-time PPP. By the combination of BDS and GPS, the BDS/GPS PPP can improve the positioning performance of GPS or BDS PPP, especially improves the PPP convergence time significantly and the convergence time is within 20 min. In addition, except the fringe region, BDS single-frequency PPP can achieve 0.5 m in horizontal component and 1.0 m in vertical component, BDS SPP can achieve 2.0 m and 3.0 m in horizontal and vertical components, respectively. © 2017, Surveying and Mapping Press. All right reserved.
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页码：1354 / 1363
页数：9
相关论文
共 27 条
  • [1] Yang Y., Progress, Contribution and Challenges of Compass/BeiDou Satellite Navigation System, Acta Geodaetica et Cartographica Sinica, 39, 1, pp. 1-6, (2010)
  • [2] Yang Y., Li J., Xu J., Et al., Contribution of the Compass Satellite Navigation System to Global PNT Users, Chinese Science Bulletin, 56, 26, pp. 2813-2819, (2011)
  • [3] Montenbruck O., Hauschild A., Steigenberger P., Et al., Initial Assessment of the Compass/BeiDou-2 Regional Navigation Satellite System, GPS Solutions, 17, 2, pp. 211-222, (2013)
  • [4] Shi C., Zaho Q., Hu Z., Et al., Precise Relative Positioning Using Real Tracking Data from Compass GEO and IGSO Satellites, GPS Solutions, 17, 1, pp. 103-119, (2013)
  • [5] Yang Y., Li J., Wang A., Et al., Preliminary Assessment of the Navigation and Positioning Performance of BeiDou Regional Navigation Satellite System, Science China: Earth Sciences, 57, 1, pp. 144-152, (2014)
  • [6] He H., Li J., Yang Y., Et al., Performance Assessment of Single-and Dual-frequency BeiDou/GPS Single-epoch Kinematic Positioning, GPS Solutions, 18, 3, pp. 393-403, (2014)
  • [7] Gu S., Lou Y., Shi C., Et al., BeiDou Phase Bias Estimation and Its Application in Precise Point Positioning with Triple-frequency Observable, Journal of Geodesy, 89, 10, pp. 979-992, (2015)
  • [8] Zhu Y., Feng L., Jia X., Et al., The PPP Precision Analysis Based on BDS Regional Navigation System, Acta Geodaetica et Cartographica Sinica, 44, 4, pp. 377-383, (2015)
  • [9] Dow J.M., Neilan R.E., Rizos C., The International GNSS Service in a Changing Landscape of Global Navigation Satellite Systems, Journal of Geodesy, 83, 3-4, pp. 191-198, (2009)
  • [10] Montenbruck O., Steigenberger P., Khachikyan R., Et al., IGS-MGEX: Preparing the Ground for Multi-constellation GNSS Science, Inside GNSS, 9, 1, pp. 42-49, (2014)
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