Performance Assessment on Expanding SBAS Service Areas of GAGAN and MSAS to Singapore Region

Y-F. Tsai and K-S. Low

Abstract:	In past decade, the GPS plays an important role in many navigation applications. In some cases, the GPS is the only device providing navigation service. For safety-of-life user, GPS alone cannot provide the stringent performance in accuracy, integrity and availability. As a result, several SBAS (Satellite Based Augmentation System) systems have been developed to provide corrections and assistances to GPS users. The notably SBAS systems are U.S. WAAS (Wide Area Augmentation System), Europe EGNOS (European Geostationary Navigation Overlay Service) and Japanese MSAS (Multi-functional Satellite Augmentation System), In addition, India and Russia have engaged in the deployment and development of SBAS system, named GAGAN (GPS Aided Geo Augmented Navigation) and SDCM (System of Differential Correction and Monitoring). Also, other regions in the world currently proceed feasibility studies on SBAS. For instance, SACCSA (The Augmentation Solution for the Caribbean, Central America and South America) project in Latin-America, ASAS (African Satellite Augmentation System) in Africa and Malaysian SBAS. SBAS broadcast the correction for ionosphere delay and satellite clock. By using these corrections, the user position accuracy can improve to several meters or better.
Published in:	Proceedings of IEEE/ION PLANS 2014 May 5 - 8, 2014 Hyatt Regency Hotel Monterey, CA
Pages:	686 - 691
Cite this article:	Tsai, Y-F., Low, K-S., "Performance Assessment on Expanding SBAS Service Areas of GAGAN and MSAS to Singapore Region," Proceedings of IEEE/ION PLANS 2014, Monterey, CA, May 2014, pp. 686-691. https://doi.org/10.1109/PLANS.2014.6851433
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