BDS PPP ambiguity resolution using B1I/B2I/B3I/B1C/B2a observations with regional reference network augmentation
ABSTRACTBeiDou navigation satellite system with global coverage (BDS-3) has been fully operational since July 2020, currently providing the positioning, navigation and timing service together with regional BDS-2. In addition to the legacy signals of B1I and B3I, the BDS-3 also transmits several new...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-08-01
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| Series: | Geo-spatial Information Science |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/10095020.2023.2249033 |
| _version_ | 1797732615647657984 |
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| author | Hongbo Lyu Xingxing Li Jiaxin Huang Guolong Feng Bo Wang Xin Li Zhiheng Shen |
| author_facet | Hongbo Lyu Xingxing Li Jiaxin Huang Guolong Feng Bo Wang Xin Li Zhiheng Shen |
| author_sort | Hongbo Lyu |
| collection | DOAJ |
| description | ABSTRACTBeiDou navigation satellite system with global coverage (BDS-3) has been fully operational since July 2020, currently providing the positioning, navigation and timing service together with regional BDS-2. In addition to the legacy signals of B1I and B3I, the BDS-3 also transmits several new signals such as BIC, B2a and B2b, which brings new opportunities for rapid ambiguity resolution (AR) of BDS precise point positioning (PPP). In this contribution, a multi-frequency (MF) rapid PPP-AR method with regional network augmentation was proposed. Firstly, BDS five-frequency observations were introduced into uncombined double-differenced models to retrieve regional augmentation corrections at the server. Thereafter, a cascade PPP-AR strategy using extra-wide-lane, wide-lane and narrow-lane ambiguity was employed at the user. Once ambiguities were fixed to integers, the phase correction accuracy could reach about 3 cm on average overall BDS frequencies in the network with inter-station distances of 100–200 km. Subsequently, the statistical results of seven-day simulated kinematic experiments showed that over 99% of epochs on average realized PPP-AR. Correspondingly, the positioning accuracy of the MF fixed solution reached 1.8, 1.9, 4.7 cm in the east, north and up components, respectively, improving by 5–15% compared with the dual-frequency scheme. Moreover, several vehicle-borne experiments under different urban scenarios were also conducted. Under an open-sky or a relatively open highway scene, the BDS-MF scheme similarly exhibited good performance, and over 98% of epochs achieved rapid PPP-AR with a positioning accuracy better than 3 cm. More encouragingly, for this BDS-challenged experiment with an average satellite number of 8.6, although only 72.06% of epochs were available due to serious signal blockages caused by overpass, tunnels or tall buildings, the horizontal positioning accuracy could still remain 7 cm on average. |
| first_indexed | 2024-03-12T12:16:09Z |
| format | Article |
| id | doaj.art-cb4f5bfdeb6344d4a9f58c6762ab075e |
| institution | Directory Open Access Journal |
| issn | 1009-5020 1993-5153 |
| language | English |
| last_indexed | 2024-03-12T12:16:09Z |
| publishDate | 2023-08-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Geo-spatial Information Science |
| spelling | doaj.art-cb4f5bfdeb6344d4a9f58c6762ab075e2023-08-30T12:48:06ZengTaylor & Francis GroupGeo-spatial Information Science1009-50201993-51532023-08-0111910.1080/10095020.2023.2249033BDS PPP ambiguity resolution using B1I/B2I/B3I/B1C/B2a observations with regional reference network augmentationHongbo Lyu0Xingxing Li1Jiaxin Huang2Guolong Feng3Bo Wang4Xin Li5Zhiheng Shen6Tianjin Navigation Instrument Research Institute, Tianjin, ChinaSchool of Geodesy and Geomatics, Wuhan University, Wuhan, ChinaTechnische Universität Berlin (TUB), Berlin, GermanySchool of Geodesy and Geomatics, Wuhan University, Wuhan, ChinaSchool of Geodesy and Geomatics, Wuhan University, Wuhan, ChinaSchool of Geodesy and Geomatics, Wuhan University, Wuhan, ChinaSchool of Geodesy and Geomatics, Wuhan University, Wuhan, ChinaABSTRACTBeiDou navigation satellite system with global coverage (BDS-3) has been fully operational since July 2020, currently providing the positioning, navigation and timing service together with regional BDS-2. In addition to the legacy signals of B1I and B3I, the BDS-3 also transmits several new signals such as BIC, B2a and B2b, which brings new opportunities for rapid ambiguity resolution (AR) of BDS precise point positioning (PPP). In this contribution, a multi-frequency (MF) rapid PPP-AR method with regional network augmentation was proposed. Firstly, BDS five-frequency observations were introduced into uncombined double-differenced models to retrieve regional augmentation corrections at the server. Thereafter, a cascade PPP-AR strategy using extra-wide-lane, wide-lane and narrow-lane ambiguity was employed at the user. Once ambiguities were fixed to integers, the phase correction accuracy could reach about 3 cm on average overall BDS frequencies in the network with inter-station distances of 100–200 km. Subsequently, the statistical results of seven-day simulated kinematic experiments showed that over 99% of epochs on average realized PPP-AR. Correspondingly, the positioning accuracy of the MF fixed solution reached 1.8, 1.9, 4.7 cm in the east, north and up components, respectively, improving by 5–15% compared with the dual-frequency scheme. Moreover, several vehicle-borne experiments under different urban scenarios were also conducted. Under an open-sky or a relatively open highway scene, the BDS-MF scheme similarly exhibited good performance, and over 98% of epochs achieved rapid PPP-AR with a positioning accuracy better than 3 cm. More encouragingly, for this BDS-challenged experiment with an average satellite number of 8.6, although only 72.06% of epochs were available due to serious signal blockages caused by overpass, tunnels or tall buildings, the horizontal positioning accuracy could still remain 7 cm on average.https://www.tandfonline.com/doi/10.1080/10095020.2023.2249033Rapid ambiguity resolutionprecise point positioningregional reference networkBDS five-frequencyurban scenarios |
| spellingShingle | Hongbo Lyu Xingxing Li Jiaxin Huang Guolong Feng Bo Wang Xin Li Zhiheng Shen BDS PPP ambiguity resolution using B1I/B2I/B3I/B1C/B2a observations with regional reference network augmentation Geo-spatial Information Science Rapid ambiguity resolution precise point positioning regional reference network BDS five-frequency urban scenarios |
| title | BDS PPP ambiguity resolution using B1I/B2I/B3I/B1C/B2a observations with regional reference network augmentation |
| title_full | BDS PPP ambiguity resolution using B1I/B2I/B3I/B1C/B2a observations with regional reference network augmentation |
| title_fullStr | BDS PPP ambiguity resolution using B1I/B2I/B3I/B1C/B2a observations with regional reference network augmentation |
| title_full_unstemmed | BDS PPP ambiguity resolution using B1I/B2I/B3I/B1C/B2a observations with regional reference network augmentation |
| title_short | BDS PPP ambiguity resolution using B1I/B2I/B3I/B1C/B2a observations with regional reference network augmentation |
| title_sort | bds ppp ambiguity resolution using b1i b2i b3i b1c b2a observations with regional reference network augmentation |
| topic | Rapid ambiguity resolution precise point positioning regional reference network BDS five-frequency urban scenarios |
| url | https://www.tandfonline.com/doi/10.1080/10095020.2023.2249033 |
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