Journal article Open Access

A Study of Adaptive Fault Detection Method for GNSS Applications

Je Young Lee; Hee Sung Kim; Kwang Ho Choi; Joonhoo Lim; Sebum Chun; Hyung Keun Lee

This study is purposed to develop an efficient fault
detection method for Global Navigation Satellite Systems (GNSS)
applications based on adaptive noise covariance estimation. Due to the
dependence on radio frequency signals, GNSS measurements are
dominated by systematic errors in receiver’s operating environment.
In the proposed method, the pseudorange and carrier-phase
measurement noise covariances are obtained at time propagations and
measurement updates in process of Carrier-Smoothed Code (CSC)
filtering, respectively. The test statistics for fault detection are
generated by the estimated measurement noise covariances. To
evaluate the fault detection capability, intentional faults were added to
the filed-collected measurements. The experiment result shows that
the proposed method is efficient in detecting unhealthy measurements
and improves GNSS positioning accuracy against fault occurrences.

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  • E. D. Kaplan, and C. J. Hegarty, (Eds.), Understanding GPS: principles and applications. Artech house, 2005.

  • J. Y. Lee, H. S. Kim, H. K. Lee, "Detection of multiple faults in single-frequency differential GPS measurements," IET Radar, Sonar & Navigation, 6(8), 2012, pp. 697-707.

  • J.Wang, P. B. Ober, "On the availability of fault detection and exclusion in GNSS receiver autonomous integrity monitoring," Journal of Navigation, 62(02), 2009, pp. 251-261.

  • M. A. Sturza, "Skewed axis inertial sensor geometry for optimal performance," In 8th AIAA/IEEE Digital Avionics Systems Conference, Vol. 1, 1988, pp. 128-135.

  • R. Hatch, "The synergism of GPS code and carrier measurements," In International geodetic symposium on satellite doppler positioning, Vol. 1, 1983, pp. 1213-1231.

  • R. K. Mehra, "On the identification of variances and adaptive Kalman filtering," Automatic Control, IEEE Transactions on, 15(2), 1970, pp. 175-184.

  • R. K. Mehra, "On-line identification of linear dynamic systems with applications to Kalman filtering," Automatic Control, IEEE Transactions on, 16(1), 1971, pp. 12-21. [10] G. H. Golub, C. Reinsch, "Singular value decomposition and least squares solutions," Numerische Mathematik, 14(5), 1970, pp. 403-420.

  • S. Hewitson, J. Wang, "GNSS receiver autonomous integrity monitoring (RAIM) performance analysis," GPS Solutions, 10(3), 2006, pp. 155-170.

  • Y. C. Lee, "A position domain relative RAIM method," Aerospace and Electronic Systems, IEEE Transactions on, 47(1), 2011, pp. 85-97.

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