A Novel Approach for the Use of Information from Reference Station Networks Conforming to RTCM V2.3 and Future V3.0

B.E. Zebhauser, H.-J. Euler, C.R. Keenan, and G. Wübbena

Abstract:	In applications requiring centimeter accuracy, single baseline positioning methods are being superseded by those methods using information from permanent reference station networks. The well known advantages afforded by reference station arrays include improved modeling of the remaining tropospheric, ionospheric and orbit biases. Methods and concepts show the improvements in performance and reliability in some kind of closed system approaches. Standardization discussions underway within RTCM target the interoperability between the reference station systems and roving receivers from various manufacturers. One obstacle in the discussion, and therefore in later interoperability issues, is the creation and proper description of the models used for deriving the biases noted above. This difficulty has to be mitigated and will vanish with time, but this interoperability is needed urgently. This paper details a different approach to utilize and distribute the information from permanent reference station networks in RTCM Version 3.0 compatible message types. Throughput calculations show their efficiency. The separation of different calculation tasks demands an easy, powerful and broadcast sufficient standard for the transfer and distribution of network information. The method proposed here does not restrict roving users to one specific network positioning concept, yet provides the opportunity for applying simple interpolation methods. Such a concept may solve the current dilemma concerning interoperability standards.
Published in:	Proceedings of the 2002 National Technical Meeting of The Institute of Navigation January 28 - 30, 2002 The Catamaran Resort Hotel San Diego, CA
Pages:	863 - 876
Cite this article:	Zebhauser, B.E., Euler, H.-J., Keenan, C.R., Wübbena, G., "A Novel Approach for the Use of Information from Reference Station Networks Conforming to RTCM V2.3 and Future V3.0," Proceedings of the 2002 National Technical Meeting of The Institute of Navigation, San Diego, CA, January 2002, pp. 863-876.
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