Interoperation of Distributed SBASS : Theory, Experience and Future Perspectives

Donghai Dai, Todd Walter, Per Enge and J. David Powell

Abstract:	In recent years there has been international accep-tance of Global Navigation Satellite System (GNSS) techniques, spurring widespread growth in the in-dependent development of so-called Satellite Based Augmentation Systems (SBASS). The ability of these distributed systems to provide complementary, coop-erative and independent information has increased in-terests in the worldwide interoperability of continu-ous navigation services and in the standardization of international aviation. This paper investigates SBASS interoperation from a technical viewpoint. The optimal strategies of infor-mation fusion are introduced for a general distributed SBASS’ architecture. Furthermore, integrity struc-tures and strategies are characterized. Then, the trade-offs between infrastructure and avionics imple-mentations are analyzed. The system design con-cepts and some fundamental issues are investigated and verified by using the National Satellite Test Bed (NSTB) network. Future perspectives on the inter-national SBASS interoperation are addressed as well.
Published in:	Proceedings of the 11th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1998) September 15 - 18, 1998 Nashville, TN
Pages:	1355 - 1364
Cite this article:	Dai, Donghai, Walter, Todd, Enge, Per, Powell, J. David, "Interoperation of Distributed SBASS : Theory, Experience and Future Perspectives," Proceedings of the 11th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1998), Nashville, TN, September 1998, pp. 1355-1364.
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