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Cao Xinyun, Shen Fei, Li Jiancheng, Zhang Shoujian. BDS-3/GNSS uncombined precise point positioning[J]. Geomatics and Information Science of Wuhan University. doi: 10.13203/j.whugis20210198
Citation: Cao Xinyun, Shen Fei, Li Jiancheng, Zhang Shoujian. BDS-3/GNSS uncombined precise point positioning[J]. Geomatics and Information Science of Wuhan University. doi: 10.13203/j.whugis20210198

BDS-3/GNSS uncombined precise point positioning

doi: 10.13203/j.whugis20210198
Funds:

National Natural Science Foundation of China (41904018, 42077003)

  • Received Date: 2021-04-14
  • The global constellation networking of BeiDou Navigation Satellite System (BDS) has been completed, which means that the BDS-3 has entered a new era of providing high-quality positioning, navigation and timing service for global users. To comprehensively compare the performance of BDS-3 uncombined precise point positioning (PPP) with other global navigation satellite systems (GNSS), three aspects are focused:the consistency of BDS-3 precise orbit and clock products among different analysis centers, the satellite availability of BDS-3/GNSS, the positioning performance of BDS-3/GNSS single-system and multi-system PPP. Based on the precise orbit and clock products from five analysis centers, the three-dimensional root mean square error of BDS-3 static PPP is about 2.31 cm~4.00 cm, and its convergence time is significantly slower than that of other GNSS. The introduction of GPS observations can achieve the most obvious improvement among BDS-3/GNSS dual-system joint PPP. Besides, the quad-constellation observations can effectively shorten the convergence time of PPP and improve the positioning accuracy on kinematic mode.
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BDS-3/GNSS uncombined precise point positioning

doi: 10.13203/j.whugis20210198
Funds:

National Natural Science Foundation of China (41904018, 42077003)

Abstract: The global constellation networking of BeiDou Navigation Satellite System (BDS) has been completed, which means that the BDS-3 has entered a new era of providing high-quality positioning, navigation and timing service for global users. To comprehensively compare the performance of BDS-3 uncombined precise point positioning (PPP) with other global navigation satellite systems (GNSS), three aspects are focused:the consistency of BDS-3 precise orbit and clock products among different analysis centers, the satellite availability of BDS-3/GNSS, the positioning performance of BDS-3/GNSS single-system and multi-system PPP. Based on the precise orbit and clock products from five analysis centers, the three-dimensional root mean square error of BDS-3 static PPP is about 2.31 cm~4.00 cm, and its convergence time is significantly slower than that of other GNSS. The introduction of GPS observations can achieve the most obvious improvement among BDS-3/GNSS dual-system joint PPP. Besides, the quad-constellation observations can effectively shorten the convergence time of PPP and improve the positioning accuracy on kinematic mode.

Cao Xinyun, Shen Fei, Li Jiancheng, Zhang Shoujian. BDS-3/GNSS uncombined precise point positioning[J]. Geomatics and Information Science of Wuhan University. doi: 10.13203/j.whugis20210198
Citation: Cao Xinyun, Shen Fei, Li Jiancheng, Zhang Shoujian. BDS-3/GNSS uncombined precise point positioning[J]. Geomatics and Information Science of Wuhan University. doi: 10.13203/j.whugis20210198
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