Broadcasting Data from an SBAS Reference Network over using LORAN

Sherman C. Lo and Per Enge

Abstract:	Space Based Augmentation Systems (SBAS) have been developed principally to augment the Global Positioning System (GPS) for aviation and other safety of life applications. An SBAS reference network generates corrections and integrity information that are broadcast primarily using geostationary satellites. However, SBAS information may also be transmitted on auxiliary data links which could increase the availability and coverage area of the overall system. This paper will discuss how LORAN (Long Range Navigation) may be used to provide an auxiliary data link for SBAS integrity and correction messages. It will begin by examining means of placing data and the SBAS based messages onto LORAN. Since the LORAN data channel does not behave like a satellite data channel, LORAN data channel models will be derived and used to examine the system's performance.
Published in:	Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000) June 26 - 28, 2000 The Catamaran Resort Hotel San Diego, CA
Pages:	275 - 284
Cite this article:	Lo, Sherman C., Enge, Per, "Broadcasting Data from an SBAS Reference Network over using LORAN," Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000), San Diego, CA, June 2000, pp. 275-284.
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