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A Hybrid GNSS Integrity Design Leveraging a Priori Signal Noise Characteristics

Published online by Cambridge University Press:  28 May 2010

James DiLellio
James DiLellio*
Affiliation:
(Pepperdine University)
*
(Email: james.dilellio@pepperdine.edu)
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Abstract

The objective of this paper is to explore a hybrid Global Navigation Satellite System (GNSS) architecture that efficiently meets the stringent needs of safety of life systems. An architecture is proposed that allocates error bounding and alerting functionality between the space, ground and user segments based on refining the assumptions of the leading-order fault free error sources expected in the near future from developing GNSS technologies. By revisiting the first principles used to derive standard RAIM fault detection, a modified detection algorithm is developed to more accurately accommodate these new fault-free error distributions while supporting timely user alerts. The results of the analysis and simulation indicate that this optimized receiver algorithm and associated architecture can provide significant development and operational benefit for navigation users requiring high levels of integrity.

Keywords

IntegrityFault free conditionsNon-Gaussian errorsSimulation
Type
Research Article
Information
The Journal of Navigation , Volume 63 , Issue 3 , July 2010 , pp. 513 - 526
Copyright
Copyright © The Royal Institute of Navigation 2010

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References

REFERENCES

[1]Parkinson, B. W and Axelrad, P. (1988). Autonomous GPS Integrity Monitoring Using the Pseudorange Residual, NAVIGATION, 35.CrossRefGoogle Scholar
[2]RTCA (1994). Minimum Operational Performance Standards for Airborne Supplemental Navigation Equipment Using Global Positioning System (GPS) (RTCA/DO-208). Appendix F: Least-Squares Residuals RAIM Method, RTCA Washington, DC.Google Scholar
[3]Brown, R. G., and Chin, G. Y. (1998) GPS RAIM: Calculation of Threshold and Protection Radius Using Chi-Square Methods – A Geometric Approach. NAVIGATION, 45.Google Scholar
[4]Chin, G. Y, et al. , (1992) GPS RAIM: Screening Out Bad Geometries Under Worst-Case Bias Conditions”, NAVIGATION, 39.CrossRefGoogle Scholar
[5]Van Dyke, K, (1999). The World After SA: Benefits to GPS Integrity. Proceedings of ION-GPS-99.Google Scholar
[6]McDonald, K. and Hegarty, C. (2000) Post-Modernization GPS Performance Capabilities, Proceedings of the IAIN World Congress.Google Scholar
[7]Young, R, and McGraw, G, (2002) Fault Detection and Exclusion Using Normalized Solution Separation Methods”, ION GPS 2002.Google Scholar
[8]Brown, R, (1992). A Baseline GPS RAIM Scheme and a Note on the Equivalence of Three RAIM Methods, NAVIGATION, 39.Google Scholar
[9]Lee, Y., (1986). Analysis of Range and Position Comparison Methods as a Means ot Provide GPS Integrity in the User Receiver, Proceedings of ION, 42nd Annual meeting.Google Scholar
[10]Kaplan, E. (ed.) Understanding GPS, Chapter 7.Google Scholar
[11]Lee, Y. et al. , (1996). Summary of RTCA SC-159 GPS Integrity Working Group Activities, NAVIGATION, 43.Google Scholar
[12]Crum, J. and Smetek, R., (1997). Welcome to the Machine: An Overview of GPS Master Control Station Anomaly Detection and Resolution Techniques, NAVIGATION, 44.CrossRefGoogle Scholar
[13]Kelly, R., (1996). Derivation of the RAIM Algorithm from First Principles with Performance Comparisons Between Published Algorithms, Proceedings of the ION.Google Scholar
[14]Van Dyke, K., (2001). Use of Standalone GPS for Approach with Vertical Guidance, Proceedings of the ION National Technical Meeting.Google Scholar
[15]Ochieng, W. Y. et al. (2001). Integrity Performance Models for a Combined Galileo/GPS Navigation System, Journal of Geospatial Engineering, 3.Google Scholar
[16]Ochieng, W. Y. et al. (2001). Potential Performance Levels of a Combined Galileo/GPS Navigation System, Journal of Navigation, 54.Google Scholar
[17]Kovach, K. (2000). New User Equivalent Range Error (UERE) Budget for the Modernized Navstar Global Positioning System (GPS), Proceedings of the ION National Technical Meeting.Google Scholar
[18]Fyfe, P. et al. (2002). GPS and Galileo – Interoperability for Civil Aviation Applications, Proceedings of ION GPS.Google Scholar
[19]Angus, J. (2006). RAIM with Multiple Faults”, NAVIGATION, 53.CrossRefGoogle Scholar
[20]DiLellio, J. (2002). Signal-In-Space User Range Error Assessment via Combined Space and Ground-based Measurement Data, Proceedings of ION GPS.Google Scholar
[21]RTCA, Minimum Operational Performance Standards For Global Positioning System/Wide Area Augmentation System Airborne Equipment (RTCA/DO-229C). 2001, RTCA: Washington, DC.Google Scholar
[22]Hopfield, H. S., (1971). Tropospheric Effect on Electromagnetically Measured Range: Prediction from Surface Water Data. Radio Science, 6, 356–367.Google Scholar
[23]Montenbruck, O. and Gill, E. (2000). Satellite Orbits: Models, Methods, Applications. Springer-Verlag.CrossRefGoogle Scholar
[24]Gallini, T. E., and Fliegel, H. F., (1995) The Generalized Solar Force Model, The Aerospace Corporation, 17.Google Scholar
[25]Grewal, M. (2007). Global Positioning Systems, Inertial Navigation, and Integration. 2nd ed., Wiley & Sons.Google Scholar
[26]Brown, K. R. et al. (1997) Dynamic Uploading for GPS Accuracy, Proceedings of ION GPS.Google Scholar
[27]DiEsposti, R., DiLellio, J., Galvin, D., Kelley, C., Shih, J., (2003) GPS III URA and URRA Information for Optimal User Performance, Proceedings of ION National Technical Meeting, Anaheim, CA.Google Scholar
[28]Benedicto, J. et al. (2000). GALILEO: Satellite System Design and Technology Developments, Europeon Space Agency.Google Scholar
[29]Misra, P. and Enge, P. (2006). Global Positioning System, Signals, Measurements and Performance. Ganga-Jamuna Press, Second Edition.Google Scholar
[30]Stein, B. and Tsang, W. (1990) Global Positioning System Integrity Channel: A system design analysis. Digital Avionics Systems Conference Proceedings., IEEE/AIAA/NASA, 576–581.CrossRefGoogle Scholar