Precise Point Positioning Using World’s First Dual-Frequency GPS/GALILEO Smartphone
The release of the world’s first dual-frequency GPS/Galileo smartphone, Xiaomi mi 8, in 2018 provides an opportunity for high-precision positioning using ultra low-cost sensors. In this research, the GNSS precise point positioning (PPP) accuracy of the Xiaomi mi 8 smartphone is tested in p...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-06-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/11/2593 |
| _version_ | 1798034892133498880 |
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| author | Abdelsatar Elmezayen Ahmed El-Rabbany |
| author_facet | Abdelsatar Elmezayen Ahmed El-Rabbany |
| author_sort | Abdelsatar Elmezayen |
| collection | DOAJ |
| description | The release of the world’s first dual-frequency GPS/Galileo smartphone, Xiaomi mi 8, in 2018 provides an opportunity for high-precision positioning using ultra low-cost sensors. In this research, the GNSS precise point positioning (PPP) accuracy of the Xiaomi mi 8 smartphone is tested in post-processing and real-time modes. Raw dual-frequency observations are collected over two different time windows from both of the Xiaomi mi 8 smartphone and a Trimble R9 geodetic-quality GNSS receiver using a short baseline, due to the lack of a nearby reference station to the observation site. The data sets are first processed in differential modes using Trimble business center (TBC) software in order to provide the reference positioning solution for both of the geodetic receiver and the smartphone. An in-house PPP software is then used to process the collected data in both of post-processing and real-time modes. Precise ephemeris obtained from the multi-GNSS experiment (MGEX) is used for post-processing PPP, while the new NAVCAST real-time GNSS service, Germany, is used for real-time PPP. Additionally, the real-time PPP solution is assessed in both of static and kinematic modes. It is shown that the dual-frequency GNSS smartphone is capable of achieving decimeter-level positioning accuracy, in both of post-processing and real-time PPP modes, respectively. Meter-level positioning accuracy is achieved in the kinematic mode. |
| first_indexed | 2024-04-11T20:50:38Z |
| format | Article |
| id | doaj.art-021787b52df4497c85304583c64d38e5 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T20:50:38Z |
| publishDate | 2019-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-021787b52df4497c85304583c64d38e52022-12-22T04:03:51ZengMDPI AGSensors1424-82202019-06-011911259310.3390/s19112593s19112593Precise Point Positioning Using World’s First Dual-Frequency GPS/GALILEO SmartphoneAbdelsatar Elmezayen0Ahmed El-Rabbany1Department of Civil Engineering, Ryerson University, Toronto M5B 2K3, CanadaDepartment of Civil Engineering, Ryerson University, Toronto M5B 2K3, CanadaThe release of the world’s first dual-frequency GPS/Galileo smartphone, Xiaomi mi 8, in 2018 provides an opportunity for high-precision positioning using ultra low-cost sensors. In this research, the GNSS precise point positioning (PPP) accuracy of the Xiaomi mi 8 smartphone is tested in post-processing and real-time modes. Raw dual-frequency observations are collected over two different time windows from both of the Xiaomi mi 8 smartphone and a Trimble R9 geodetic-quality GNSS receiver using a short baseline, due to the lack of a nearby reference station to the observation site. The data sets are first processed in differential modes using Trimble business center (TBC) software in order to provide the reference positioning solution for both of the geodetic receiver and the smartphone. An in-house PPP software is then used to process the collected data in both of post-processing and real-time modes. Precise ephemeris obtained from the multi-GNSS experiment (MGEX) is used for post-processing PPP, while the new NAVCAST real-time GNSS service, Germany, is used for real-time PPP. Additionally, the real-time PPP solution is assessed in both of static and kinematic modes. It is shown that the dual-frequency GNSS smartphone is capable of achieving decimeter-level positioning accuracy, in both of post-processing and real-time PPP modes, respectively. Meter-level positioning accuracy is achieved in the kinematic mode.https://www.mdpi.com/1424-8220/19/11/2593Xiaomi mi 8PPPDGNSSNAVCAST |
| spellingShingle | Abdelsatar Elmezayen Ahmed El-Rabbany Precise Point Positioning Using World’s First Dual-Frequency GPS/GALILEO Smartphone Sensors Xiaomi mi 8 PPP DGNSS NAVCAST |
| title | Precise Point Positioning Using World’s First Dual-Frequency GPS/GALILEO Smartphone |
| title_full | Precise Point Positioning Using World’s First Dual-Frequency GPS/GALILEO Smartphone |
| title_fullStr | Precise Point Positioning Using World’s First Dual-Frequency GPS/GALILEO Smartphone |
| title_full_unstemmed | Precise Point Positioning Using World’s First Dual-Frequency GPS/GALILEO Smartphone |
| title_short | Precise Point Positioning Using World’s First Dual-Frequency GPS/GALILEO Smartphone |
| title_sort | precise point positioning using world s first dual frequency gps galileo smartphone |
| topic | Xiaomi mi 8 PPP DGNSS NAVCAST |
| url | https://www.mdpi.com/1424-8220/19/11/2593 |
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