Abstract
This paper presents a first analysis on the positioning performance using raw GNSS dual-frequency measurements acquired by the Xiaomi Mi 8 smartphone. In our study, we used the code-only-based Single Point Positioning technique for epoch-by-epoch positioning, and the Precise Point Positioning technique, which is based on both code and carrier-phase measurements, on precise satellite orbit and clock corrections, as well as on a dynamic model to exploit the time-constant property of the phase ambiguities. The functional model used in both our own SPP and PPP algorithms is based on the uncombined GNSS observation equations. As the Xiaomi Mi 8 smartphone is able to track both GPS and Galileo systems in two frequencies, we will present results based on single and combined GNSS solutions in single- and dual-frequency mode. The performance of these solutions will be assessed in terms of their repeatability and accuracy with respect to the ground-truth, while the improvement in Android-based positioning with multiple frequencies and GNSSs will be assessed compared to the GPS L1-only SPP case. An optimal combination of the elevation cut-off angle and the carrier-to-noise density ratio mask will be explored in order to have a reasonable balance between availability and quality of observations. Both real-time and post-processing positioning results will be presented.
Original language | English |
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Title of host publication | Proceedings of the 32nd International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2019 |
Publisher | ION - Inst. of Navigation |
Pages | 3917-3931 |
Number of pages | 15 |
ISBN (Electronic) | 0936406232, 9780936406237 |
DOIs | |
Publication status | Published - 2019 |
Event | ION GNSS+ 2019 - Hyatt Regency Miami, Miami, United States Duration: 16 Sept 2019 → 20 Sept 2019 https://www.ion.org/gnss/index.cfm |
Conference
Conference | ION GNSS+ 2019 |
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Country/Territory | United States |
City | Miami |
Period | 16/09/19 → 20/09/19 |
Internet address |