Availability analysis of BDS-3 PPP-B2b real-time precise point positioning service

XU Yangyin; REN Xia; MING Feng

doi:10.12265/j.gnss.2023214

Volume 49 Issue 3

Jun. 2024

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Article Navigation > GNSS World of China > 2024 > 49(3): 10-19

XU Yangyin, REN Xia, MING Feng. Availability analysis of BDS-3 PPP-B2b real-time precise point positioning service[J]. GNSS World of China, 2024, 49(3): 10-19. doi: 10.12265/j.gnss.2023214

Citation:

XU Yangyin, REN Xia, MING Feng. Availability analysis of BDS-3 PPP-B2b real-time precise point positioning service[J]. GNSS World of China, 2024, 49(3): 10-19. doi: 10.12265/j.gnss.2023214

Citation:

XU Yangyin, REN Xia, MING Feng. Availability analysis of BDS-3 PPP-B2b real-time precise point positioning service[J]. GNSS World of China, 2024, 49(3): 10-19. doi: 10.12265/j.gnss.2023214

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Availability analysis of BDS-3 PPP-B2b real-time precise point positioning service

doi: 10.12265/j.gnss.2023214

XU Yangyin^{1, 2
,
,},
REN Xia^{1, 2},
MING Feng^{1, 2}

1.
State Key Laboratory of Geo-Information Engineering, Xi’an 710054, China
2.
Xi’an Research Institute of Surveying and Mapping, Xi’an 710054, China

Received Date: 2023-11-17
Accepted Date: 2023-11-17

Abstract

Abstract

Aiming at the availability of BDS-3 PPP-B2b service, a systematic analysis has been conducted towards the availability ratio of PPP-B2b corrections, the average number of satellites with available corrections and the matching characteristics of PPP-B2b corrections. The results show that in China and surrounding areas, the availability of BDS-3 PPP-B2b corrections is between 71% and 95%, and reaches the maximum in Beijing. While that for the GPS system is between 68.5% and 88.6%, which is worse than the BDS-3. The satellite observation arcs lack of PPP-B2b corrections are mainly concentrated in low elevation angle periods for users in China and surrounding areas, and the availability of PPP-B2b corrections will increase with the increase of cut-off elevation angle. The average number of satellites with available PPP-B2b corrections for BDS-3, GPS and BDS-3/GPS systems in China and surrounding areas is about 8, 7 and 15 respectively, which can ensure effective real-time PPP service performance. However, on average, about 1 BDS-3 satellite and 2 GPS satellites cannot participate in the real-time PPP positioning due to the lack of PPP-B2b corrections for users in the area. For areas south of the equator, BDS-3 only or GPS-only system is basically unable to provide effective real-time PPP services with the average availability of PPP-B2b correction being less than 50%, but the BDS-3/GPS dual system can provide about 7 to 11 available satellites in some low latitude areas. Users should be noticed that there will be a temporary mismatching state between the orbit and clock offset corrections each time when the IOD Corr parameter changes due to the different updating frequency.
- BDS-3,
- PPP B2b corrections,
- real-time PPP service,
- availability,
- number of visible satellites,
- matching characteristics

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References(31)

References

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Availability analysis of BDS-3 PPP-B2b real-time precise point positioning service

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