<div class="csl-bib-body">
<div class="csl-entry">Rajavarathan, J., Retscher, G., & Gajanan, K. (2024). Implementation of GAGAN augmentation on smart mobile devices and development of a cooperative positioning architecture. <i>Journal of Applied Geodesy</i>, <i>18</i>(3), 541–552. https://doi.org/10.1515/jag-2023-0056</div>
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dc.identifier.issn
1862-9016
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/202630
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dc.description.abstract
This study presents an Android-based cooperative positioning (CP) architecture to improve the GNSS positioning performance on mobile devices. SBAS (Satellite Based Augmentation System) augmentation increases positioning accuracies significantly by sharing corrections between SBAS-enabled and non-capable devices via wireless connection or using a central server. The Indian GAGAN (GPS Aided GEO Augmented Navigation) is employed and assessed in the experiments. If GAGAN corrections are applied, all three chosen mobile devices showed a positioning accuracy improvement of around 95 %. The average 2D RSME was reduced from 75.23 to 1.35 m for the singlefrequency GNSS smartphone Xiaomi Redmi Note 8 and from 33.25 to 1.62 m for the dual-frequency Google Pixel 4. As expected, the third GIS mapping device, Stonex S70 tablet, showed the highest performance, achieving sub-meter positioning accuracies. Thus, the experiment has proven the suitability of GAGAN augmentation for mobile devices, providing positive insight for further development of the CP architecture.
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dc.language.iso
en
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dc.publisher
de Gruyter
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dc.relation.ispartof
Journal of Applied Geodesy
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dc.subject
cooperative positioning (CP)
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dc.subject
dual-frequency carrier phase smartphone
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dc.subject
GAGAN
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dc.subject
GNSS
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dc.subject
mobile positioning architecture
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dc.subject
single-frequency carrier phase smartphone
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dc.title
Implementation of GAGAN augmentation on smart mobile devices and development of a cooperative positioning architecture