BDS-2/BDS-3 Joint Triple-Frequency Precise Point Positioning Models and Bias Characteristic Analysis

被引：0
|
作者：
Zhu S. [1 ]
Yue D. [1 ]
He L. [1 ]
Chen J. [2 ]
Liu S. [1 ]
机构：
[1] School of Earth Sciences and Engineering, Hohai University, Nanjing
[2] School of Spatial Informatics and Geomatics Engineering, Anhui University of Science and Technology, Huainan
来源：
Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University | 2023年 / 48卷 / 12期
关键词：
BeiDou-2 navigation satellite system (BDS-2); BeiDou-3 navigation satellite system (BDS-3); receiver inter-frequency bias; time delay bias; triple-frequency precise point positioning;
D O I：
10.13203/j.whugis20210273
中图分类号：
学科分类号：
摘要：
Objectives: The global BeiDou-3 navigation satellite system (BDS-3) along with regional BeiDou navigation satellite system (BDS-2) is providing users with high-precision positioning, navigation and timing services on three or more frequency signals. To deeply integrate the triple-frequency observations of BDS-2 and BDS-3, we establish the BDS-2/BDS-3 joint triple-frequency precise point positioning (PPP) models and analyze the characteristics of biases arisen in these models. Methods: Using the linear combinations of raw observations,the triple-frequency ionosphere-free and uncombined PPP models are developed. In particular, the mathematical expressions of receiver inter-frequency bias (IFB) and time delay bias (TDB) between BDS-2 and BDS-3 are derived. Results: The experimental results show that BDS-3 can significantly enhance the PPP performance. In static mode, the BDS-2/BDS-3 joint PPP is able to achieve the positioning accuracy of 1.2/1.0/1.8 cm after the convergence time of 15.8/7.3/22.3 min in the east/north/ up components. As for kinematic PPP, the convergence time and converged positioning accuracy are 27.3/ 10.3/33.8 min and 2.2/1.7/4.4 cm, respectively. Conclusions: The convergence performance and positioning accuracy of triple-frequency ionosphere-free and uncombined PPP models are comparable, and the third frequency signal makes a marginal contribution to positioning performance. Both IFB and TDB show the good intra-day stability. The intra-day standard deviations (STD) of IFB can reach 7.9 and 3.6 cm for BDS-2 and BDS-3 signals, respectively, and the intra-day STD of TDB can reach 8.8 cm. © 2023 Wuhan University. All rights reserved.
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页码：2049 / 2059
页数：10
相关论文
共 25 条
  • [1] Yuanxi Yang, Yangyin Xu, Jinlong Li, Et al., Progress and Performance Evaluation of BeiDou Global Navigation Satellite System：Data Analysis Based on BDS-3 Demonstration System［J］, Scientia Sini-ca（Terrae）, 48, 5, pp. 584-594, (2018)
  • [2] Yang Y X，, Mao Y，, Sun B J., Basic Performance and Future Developments of BeiDou Global Navigation Satellite System ［J］, Satellite Navigation, 1, 1, (2020)
  • [3] Kaishi Zhang, Wenhai Jiao, Jianwen Li, The Quality Assessment of BDS-3 FOC MEO Satellite Measurements［J］, Journal of Geomatics Science and Technology, 35, 3, pp. 265-269, (2018)
  • [4] Zhongbao Yan, Xiaohong Zhang, Partial Ambiguity Resolution Method and Results Analysis for GNSS Uncombined PPP［J］, Geomatics and Information Science of Wuhan University, 47, 6, pp. 979-989, (2022)
  • [5] Hui Zhang, Jinming Hao, Weiping Liu, Et al., GPS/ BDS Precise Point Positioning Model with Receiver DCB Parameters for Raw Observations［J］, Geomatics and Information Science of Wuhan University, 44, 4, pp. 495-500, (2019)
  • [6] Fan Zhang, Hongzhou Chai, Min Wang, Et al., Uncombined PPP Ambiguity Resolution Combined with GPS/GLONASS Triple-frequency Observations［J］, Geomatics and Information Science of Wuhan University, (2023)
  • [7] Jiao G Q, Song S L，, Jiao W H., Improving BDS-2 and BDS-3 Joint Precise Point Positioning with Time Delay Bias Estimation［J］, Measurement Science and Technology, 31, 2, (2020)
  • [8] Zhao W, Et al., Evaluation of Inter-system Bias Between BDS-2 and BDS-3 Satellites and Its Impact on Precise Point Positioning［J］, Remote Sensing, 12, 14, (2020)
  • [9] Cao X Y，, Shen F，, Zhang S J，, Et al., Time Delay Bias Between the Second and Third Generation of BeiDou Navigation Satellite System and Its Effect on Precise Point Positioning［J］, Measurement, 168, (2021)
  • [10] Qin W J, Zhang Z，, Et al., Accounting BDS3-BDS2 Inter-system Biases for Precise Time Transfer ［J］, Measurement, 156, (2020)
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