Integrated real-time precise point positioning system with B2b/B2a/B1C services
Abstract Real-Time Precise Point Positioning (RTPPP) technology is one of the most important means of positioning and navigation, whereas this type of service requires Internet access. As an alternative, satellite-based RTPPP can be utilized, especially for the PPP-B2b service of the BeiDou Navigati...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-07-01
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| Series: | Satellite Navigation |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s43020-025-00172-x |
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| Summary: | Abstract Real-Time Precise Point Positioning (RTPPP) technology is one of the most important means of positioning and navigation, whereas this type of service requires Internet access. As an alternative, satellite-based RTPPP can be utilized, especially for the PPP-B2b service of the BeiDou Navigation Satellite System (BDS). However, there is no systematic study on how to fully employ all satellite-based augmented services such as B2b, B2a, and B1C services in BDS. To ensure the continuity and availability of the PPP-B2b service, an Integrated Real-Time PPP (InRPPP) system is proposed which consists of B2b, B2a, B1C, and broadcast ephemeris messages. Specifically, the satellite orbit and clock errors are corrected by the B2b and B2a services, and the ionospheric delays by the B1C services. That is, the B2b, B2a, B1C, and broadcast ephemeris messages are resiliently utilized in the InRPPP system. Both static and kinematic experiments under complex conditions are carried out. The results indicate that compared to the PPP based on B2b, B2a, or B1C services, the InRPPP system performs the best in terms of visible satellite numbers and Position Dilution of Precision (PDOP) values. Also, in the static experiment, the InRPPP mode achieves the highest accuracy and the shortest convergence time compared to the PPP based on B2b, B2a, or B1C services. The Three-Dimensional (3D) Root-Mean-Square (RMS) value of the InRPPP mode is 0.49 m, improving 59.6% on average. For the convergence time, 65.9% improvements can be obtained on average. In the kinematic experiment, for the InRPPP solutions the jumps are suppressed and the availability and stability are increased, which exhibiting average 34.3% improvements in terms of the 3D RMS value. In conclusion, the InRPPP system with B2b/B2a/B1C services presents superior performance and has a great potential in real applications. |
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| ISSN: | 2662-9291 2662-1363 |