Multi-Constellation Integrity Performance Expectations for Today's ARNS/RNSS Bands

Victoria Kropp, Paulo Mendes and Bernd Eissfeller

Abstract:	The development of technology in different countries advances faster than ever before. This also holds for the Global Navigation Satellite Systems (GNSS) where numerous improvements at the different segment level will contribute to increase the integrity performance. The interoperability of various GNSS will also play an important role in the future, not only to raise the accuracy, but also to further progress in the integrity provision schemes. There arises a frequently asked question in the GNSS community: “How could a level of Safety of Life (SoL) integrity service be achieved?” Many scientists from different areas are working on improving today’s integrity performance. As said, the context is quite complex and still today many actions taken by the various system providers can affect the level of performance that will be achievable in the next years. As an example it needs to be noted that Galileo is currently undertaking actions to re-profile its SoL service that was foreseen to be provided via Galileo Integrity Concept. The goal of this paper is to achieve a predicted performance expectations for the integrity algorithms using different error overbounding models. This dependence will be shown as an impact on vertical protection level (VPL) measured in meters. The Galileo Integrity Concept (GIC), Advanced Receiver Autonomous Integrity Monitoring (ARAIM) and RAIM algorithms are used for the study. Open issues such as vulnerability of integrity concepts to signal interference in GNSS performance will be discussed in more detail. Particular emphasis is put on generation of User Equivalent Range Error (UERE) using conservative error models and the corresponding values will be carried out. Therefore, this paper provides a deep look into GNSS error modeling performance in current times using multipath and noise error uncertainties. The attention will be focused on aviation precision approach procedures, where the errors have to be protected with an overall time-to-alert of only a few seconds.
Published in:	Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011) September 20 - 23, 2011 Oregon Convention Center, Portland, Oregon Portland, OR
Pages:	3192 - 3204
Cite this article:	Kropp, Victoria, Mendes, Paulo, Eissfeller, Bernd, "Multi-Constellation Integrity Performance Expectations for Today's ARNS/RNSS Bands," Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011), Portland, OR, September 2011, pp. 3192-3204.
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