Evaluation of decimeter positioning post-processing algorithms using GNSS raw measurements
Castel B, Cortés I, Rossouw van der Merwe J, Dietmayer K, Rügamer A, Felber W (2021)
Publication Type: Conference contribution
Publication year: 2021
Publisher: Institute of Navigation
Pages Range: 3037-3048
Conference Proceedings Title: Proceedings of the 34th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2021
Event location: St. Louis, MO, USA
ISBN: 9780936406299
DOI: 10.33012/2021.18051
Abstract
This paper evaluates the post-processing stages of a global navigation satellite system (GNSS) receiver using the Android datasets. GNSS receivers that are integrated in smartphones are constrained by low size, weight, power consumption, and cost (SWAPC) requirements. These conditions usually difficult the possibility to obtain an accurate position, velocity, and time (PVT) solution. This study evaluates the raw GNSS data of Android smartphones using decimeter positioning algorithms. A python localization toolkit (PLT) is created for these purposes. The toolkit contains four main parts: The reading and synchronization of the raw measurements, the pseudorange corrections module, the positioning algorithms, and the evaluation of the results. In order to achieve decimeter positioning, the pseudorange corrections module performs the transition from the code pseudorange to carrier phase pseudorange using the accumulated delta range in hatch filter. Also, loose coupling (LC) between GNSS and inertial navigation system (INS) can benefit the positioning in case there is no line-of-sight (LOS). The results show that meter instead of decimeter accuracy is achieved in good condition scenarios, even using the accumulated delta range (ADR). Another finding is that the LC outperforms the GNSS positioning algorithms if the GNSS solution has a low horizontal root mean square error.
Involved external institutions
Germany (DE)How to cite
APA:
Castel, B., Cortés, I., Rossouw van der Merwe, J., Dietmayer, K., Rügamer, A., & Felber, W. (2021). Evaluation of decimeter positioning post-processing algorithms using GNSS raw measurements. In Proceedings of the 34th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2021 (pp. 3037-3048). St. Louis, MO, USA: Institute of Navigation.
MLA:
Castel, Belén, et al. "Evaluation of decimeter positioning post-processing algorithms using GNSS raw measurements." Proceedings of the 34th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2021, St. Louis, MO, USA Institute of Navigation, 2021. 3037-3048.
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