TY - JOUR
T1 - Performance analysis of real-time precise point positioning with GPS and BDS state space representation
AU - Liu, Peng
AU - Ling, Keck Voon
AU - Qin, Honglei
AU - Liu, Tianjun
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/6/30
Y1 - 2023/6/30
N2 - The third-generation BeiDou Navigation Satellite System (BDS-3) has global networking in July 2020, multi-constellation Precise Point Positioning (PPP) with GPS, BDS-2 and BDS-3 has become a more accurate global positioning technique. With the improvement of state-space representation (SSR) in 22 Mar. 2021, an initial assessment of real-time PPP with 3 constellations is presented. Specifically, a unified form of observation equations with 3 constellations is proposed. While the qualities of GPS/BDS-2/BDS-3 real-time services at the mountpoint SSRA00CNE0 are better than ultra-rapid ephemeris and worse than rapid ephemeris. Finally, the 3-hour real-time PPP experiments based on 52 Multi-GNSS Experiment (MGEX) reference stations over 21 days are realized in static and simulated kinematic mode. There are the similar positioning accuracy and precision for GPS-only, GPS/BDS-2 and GPS/BDS-2/BDS-3. However, the convergence time of the GPS/BDS-2/BDS-3 reduces by 3.37% and 3.32% in static mode. And it reduces by 9.04% and 1.87% in simulated kinematic mode.
AB - The third-generation BeiDou Navigation Satellite System (BDS-3) has global networking in July 2020, multi-constellation Precise Point Positioning (PPP) with GPS, BDS-2 and BDS-3 has become a more accurate global positioning technique. With the improvement of state-space representation (SSR) in 22 Mar. 2021, an initial assessment of real-time PPP with 3 constellations is presented. Specifically, a unified form of observation equations with 3 constellations is proposed. While the qualities of GPS/BDS-2/BDS-3 real-time services at the mountpoint SSRA00CNE0 are better than ultra-rapid ephemeris and worse than rapid ephemeris. Finally, the 3-hour real-time PPP experiments based on 52 Multi-GNSS Experiment (MGEX) reference stations over 21 days are realized in static and simulated kinematic mode. There are the similar positioning accuracy and precision for GPS-only, GPS/BDS-2 and GPS/BDS-2/BDS-3. However, the convergence time of the GPS/BDS-2/BDS-3 reduces by 3.37% and 3.32% in static mode. And it reduces by 9.04% and 1.87% in simulated kinematic mode.
KW - Multi-constellation
KW - Precise Point Positioning (PPP)
KW - Real-Time Service (RTS)
KW - State-space representation (SSR)
KW - Third-generation BeiDou Navigation Satellite System (BDS-3)
UR - https://www.scopus.com/pages/publications/85152603498
U2 - 10.1016/j.measurement.2023.112880
DO - 10.1016/j.measurement.2023.112880
M3 - 文章
AN - SCOPUS:85152603498
SN - 0263-2241
VL - 215
JO - Measurement: Journal of the International Measurement Confederation
JF - Measurement: Journal of the International Measurement Confederation
M1 - 112880
ER -