U-SBAS: A universal multi-SBAS standard to ensure compatibility, interoperability and interchangeability

Sahmoudi, M.; Issler, Jean-Luc; Perozans, Felix; Tawk, Youssef; Jovanović, Aleksandar; Botteron, Cyril; Farine, P.-A.; Landry, René; Déhant, V.; Reboul, Serge; Willis, Pascal

doi:10.1109/navitec.2010.5708076

Cited by 3 publications

(3 citation statements)

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“…Moreover, the applied SBAS ionosphere model will be used in the KAAS augmentation system (Korea Augmentation Satellite System). The paper [30] presents fascinating research results concerning the development of a standard SBAS correction format and signal for BDSBAS (BeiDou SBAS), WAAS, EGNOS, GAGAN, QZSS, MSAS, and SDCM (system of differential correction and monitoring) systems with global satellite navigation systems GNSS. This solution is used to increase the interoperability and compatibility of global GNSS systems with SBAS augmentation systems.…”

Section: Related Workmentioning

confidence: 99%

“…However, in [34], corrections were made to the position of the GPS satellite and the error of the GPS satellite clock and the ionospheric delay with the use of corrections from the WAAS, SDCM, GAGAN, MSAS, and EGNOS systems. Based on the studied literature [25][26][27][28][29][30][31][32][33][34], various aspects of the multi-SBAS positioning were shown. The multitude of SBAS assistance systems is interesting from the point of view of combining and fusing single-position navigation solutions, including the position of the UAV.…”

Section: Related Workmentioning

confidence: 99%

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Improvement of UAV Positioning Performance Based on EGNOS+SDCM Solution

Krasuski¹,

Wierzbicki

Bakuła³

2021

Remote Sensing

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The article presents the results of research on multi-SBAS (multi-satellite-based augmentation system) positioning in UAV (unmanned aerial vehicle) technology. For this purpose, a new solution was developed for combining the UAV position navigation solution from several SBAS systems. In this particular case, the presented linear combination algorithm is based on the fusion of EGNOS (European geostationary navigation overlay service) and SDCM (system of differential correction and monitoring) positioning to determine the resultant UAV coordinates. The algorithm of the mathematical model uses weights of measurements in three ways, i.e., Variant I, the reciprocal of the number of tracked satellites from a single SBAS solution; Variant II, the inverse square of mean coordinate errors from a single SBAS solution; and Variant III, the reciprocal of UAV flight speed from a single SBAS solution. The research experiment used real GNSS (global navigation satellite system) navigation data recorded by the VTOL unmanned platform. The test flight was made in April 2020 in Poland, near Warsaw. Based on the developed research results, it was found that the highest accuracy of UAV positioning was obtained when using the weighting model for Variant II. In the weight model of Variant II, the accuracy of the solution of the UAV position increased by 1–2% for the horizontal components and 19–22% for the vertical component h, concerning the results obtained from the weighing Variants I and III. It is worth noting that the proposed research model significantly improves the results of determining the ellipsoidal height h. Compared to the arithmetic mean model, determining the h component in the Variant II weight model is improved by about 23%. The paper also shows the advantage of EGNOS+SDCM positioning over EGNOS positioning alone in determining the accuracy of the vertical component h. The obtained research results show the significant advantages of the multi-SBAS positioning model in UAV technology.

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Section: Related Workmentioning

confidence: 99%