Making GNSS Integrity Simple and Efficient - A New Concept Based on Signal-in-Space Error Bounds

J. Mach, I. Deuster, R. Wolf, W. Werner

Abstract:	This publication has the objective to contribute a new concept to the ongoing scientific discussion, which can be regarded as a modified version of the Galileo integrity concept. The characteristic feature of the concept is the dissemination of instantaneous Signal-in-Space Error Bounds (SISE-B) instead of the Signal-in-Space Monitoring Accuracy (SISMA). This small but effective modification results in a significant reduction of performance losses that are inherent to the Galileo concept. Furthermore a modified definition of SISA overbounding is introduced, which is more favorable to verification. The optimized combination of statistical (SISA) and instantaneous (SISE-B) information allows relaxing overbounding requirements and still minimizing the integrity risk. The paper explains the background and gives high-level specifications of both system and user algorithms. Special focus is put on the user protection approach including integrity and continuity aspects. The expected availability performance is assessed by means of simulation results.
Published in:	Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2006) September 26 - 29, 2006 Fort Worth Convention Center Fort Worth, TX
Pages:	2666 - 2677
Cite this article:	Mach, J., Deuster, I., Wolf, R., Werner, W., "Making GNSS Integrity Simple and Efficient - A New Concept Based on Signal-in-Space Error Bounds," Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2006), Fort Worth, TX, September 2006, pp. 2666-2677.
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