Modeling and assessment of atmospheric delay for GPS/Galileo/BDS PPP-RTK in regional-scale
Combining advantages of precise point positioning (PPP) and real-time kinematic (RTK), PPP-RTK has become a promising technology in the mass-market positioning. When performing PPP-RTK, atmospheric corrections enable the user fast ambiguity resolution as well as centimeter accuracy. However, the leg...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
ELSEVIER SCI LTD
2022
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/89285 |
| _version_ | 1848765195461066752 |
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| author | Yin, X. Chai, H. El-Mowafy, Ahmed Zhang, Y. Zhang, Y. Du, Z. |
| author_facet | Yin, X. Chai, H. El-Mowafy, Ahmed Zhang, Y. Zhang, Y. Du, Z. |
| author_sort | Yin, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Combining advantages of precise point positioning (PPP) and real-time kinematic (RTK), PPP-RTK has become a promising technology in the mass-market positioning. When performing PPP-RTK, atmospheric corrections enable the user fast ambiguity resolution as well as centimeter accuracy. However, the legacy method of obtaining atmospheric corrections, i.e., interpolating the atmospheric delay based on nearby reference stations, is not regular in space and needs the reference station coordinate information, thereby limiting real-time professional applications. In this contribution, a low-degree polynomial with regular grid residuals is investigated. Forming between-satellite single-differenced slant ionospheric delay, we theoretically analyze the reference network size. Afterwards, the zenith tropospheric delay and slant ionospheric delay accuracy using zero-, first- and second-degree polynomials in calm atmospheric periods are about (5.6, 4.7 and 4.7) mm and (1.9, 1.3 and 1.3) cm. It is therefore recommended to adopt the first-degree polynomial model in terms of the accuracy and transmission load. |
| first_indexed | 2025-11-14T11:31:23Z |
| format | Journal Article |
| id | curtin-20.500.11937-89285 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:31:23Z |
| publishDate | 2022 |
| publisher | ELSEVIER SCI LTD |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-892852022-09-23T05:12:46Z Modeling and assessment of atmospheric delay for GPS/Galileo/BDS PPP-RTK in regional-scale Yin, X. Chai, H. El-Mowafy, Ahmed Zhang, Y. Zhang, Y. Du, Z. Science & Technology Technology Engineering, Multidisciplinary Instruments & Instrumentation Engineering PPP-RTK Ambiguity resolution (AR) Atmospheric delay retrieving Reference network size Low-degree polynomial with regular grid residuals GPS RESOLUTION Combining advantages of precise point positioning (PPP) and real-time kinematic (RTK), PPP-RTK has become a promising technology in the mass-market positioning. When performing PPP-RTK, atmospheric corrections enable the user fast ambiguity resolution as well as centimeter accuracy. However, the legacy method of obtaining atmospheric corrections, i.e., interpolating the atmospheric delay based on nearby reference stations, is not regular in space and needs the reference station coordinate information, thereby limiting real-time professional applications. In this contribution, a low-degree polynomial with regular grid residuals is investigated. Forming between-satellite single-differenced slant ionospheric delay, we theoretically analyze the reference network size. Afterwards, the zenith tropospheric delay and slant ionospheric delay accuracy using zero-, first- and second-degree polynomials in calm atmospheric periods are about (5.6, 4.7 and 4.7) mm and (1.9, 1.3 and 1.3) cm. It is therefore recommended to adopt the first-degree polynomial model in terms of the accuracy and transmission load. 2022 Journal Article http://hdl.handle.net/20.500.11937/89285 10.1016/j.measurement.2022.111043 English ELSEVIER SCI LTD restricted |
| spellingShingle | Science & Technology Technology Engineering, Multidisciplinary Instruments & Instrumentation Engineering PPP-RTK Ambiguity resolution (AR) Atmospheric delay retrieving Reference network size Low-degree polynomial with regular grid residuals GPS RESOLUTION Yin, X. Chai, H. El-Mowafy, Ahmed Zhang, Y. Zhang, Y. Du, Z. Modeling and assessment of atmospheric delay for GPS/Galileo/BDS PPP-RTK in regional-scale |
| title | Modeling and assessment of atmospheric delay for GPS/Galileo/BDS PPP-RTK in regional-scale |
| title_full | Modeling and assessment of atmospheric delay for GPS/Galileo/BDS PPP-RTK in regional-scale |
| title_fullStr | Modeling and assessment of atmospheric delay for GPS/Galileo/BDS PPP-RTK in regional-scale |
| title_full_unstemmed | Modeling and assessment of atmospheric delay for GPS/Galileo/BDS PPP-RTK in regional-scale |
| title_short | Modeling and assessment of atmospheric delay for GPS/Galileo/BDS PPP-RTK in regional-scale |
| title_sort | modeling and assessment of atmospheric delay for gps/galileo/bds ppp-rtk in regional-scale |
| topic | Science & Technology Technology Engineering, Multidisciplinary Instruments & Instrumentation Engineering PPP-RTK Ambiguity resolution (AR) Atmospheric delay retrieving Reference network size Low-degree polynomial with regular grid residuals GPS RESOLUTION |
| url | http://hdl.handle.net/20.500.11937/89285 |