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http://dx.doi.org/10.7319/kogsis.2012.20.3.049

Fault Detection Performance Analysis of GNSS Integrity RAIM  

Kim, Ji Hye (인하대학교 공과대학 지리정보공학과)
Park, Kwan Dong (인하대학교 공과대학 지리정보공학과)
Kim, Du Sik (인하대학교 공과대학 지리정보공학과)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.20, no.3, 2012 , pp. 49-56 More about this Journal
Abstract
Performance analysis on RAIM, which is one of the techniques for monitoring integrity to ensure the reliability of GPS, was conducted in this study. RAIM is such a method which allows its user to monitor integrity in the stand-alone mode. Among the existing RAIM procedures, the representative methods including the RCM (Range Comparison Method), LSRM (Least Square Residual Method), Parity approach and WRAIM (Weighted RAIM) were evaluated, and their performance was analyzed. To validate the performance of the implemented algorithms, fault detection was tried on the clock malfunctioning event of PRN 23 occurred on January 1st, 2004. As a result, it was identified that the LSRM and the WRAIM detected all the faults happened in the event. In the case of RCM, all the states of fault were detected except for the error which occurred as a false alarm at one epoch. Furthermore, simulated biases were added for each satellite to analyze the sensitivity of each algorithm. Consequently, when biases of the 9-13 meters range were simulated for the RCM and LSRM algorithm, all the malfunctions were detected. For the WRAIM method, it could detect range biases greater than 15 meters.
Keywords
GPS; Integrity; RAIM; Fault Detection;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Sturza, M. A. and Brown, A. K., 1990, Comparison of Fixed and Variable Threshold RAIM Algorithms, Proceedings of the 3rd International Technical Meeting of the Satellite Division of The Institute of Navigation, ION, pp. 437-443.
2 Walter, T. and Enge, P., 1995, Weighted RAIM for Precision Approach, Proceedings of ION GPS-95, pp. 1995-2004.
3 손지수, 2002, GPS 수신기 RAIM 기능 구현, 석사학위논문, 건국대학교, pp. 2-42.
4 안용운, 2010, 잔차 투영 비교에 의한 위치해 바이어스 검출 기법, 석사학위논문, 건국대학교, pp. 29-34.
5 유장식 , 2010, 도플러 측정치를 이용한 위치기반의 RAIM 기법, 석사학위논문, 건국대학교, pp. 37-38.
6 유창선, 안이기, 이상정, 2003, 패러티 공간을 이용한 2개 GPS 파라미터 고장진단, 한국항공우주학회지, 한국항공우주학회, 제 31권, 6호, pp. 52-60.   과학기술학회마을   DOI
7 윤영선, 박성민, 기창돈, 2002, DGPS 측정치 무결성 감시 시스템 구현 및 시험, 한국항행학회 논문지, 한국항행학회, 제 6권, 2호, pp. 104-112.
8 Brown, R. G., 1997, Solution of the Two-Failure GPS RAIM Problem Under worst-case bias conditions, NAVIGATION, ION, Vol. 44, No. 4, pp. 425-432.   DOI
9 Hwang, P. Y. and Brown, R. G., 2006, RAIM-FDE Revisited: A New Breakthrough In Availability Performance With NIORAIM(Novel Integrity-Optimized RAIM), NAVIGATION, ION, Vol. 53, No. 1, pp. 41-52.   DOI
10 Kaplan, E. D. and Hegarty, C., 2005, Understanding GPS: Principles and applicaion, Second Edition, Artech House Publishers, ,pp. 349-353.
11 Lee, Y. C., 1986, Analysis of Range and Position Comparison Methods as a Means to Provide GPS Integrity in the User Receiver, Proceedings of the Annual Meeting of the Institute of Navigation, pp. 1-4.
12 Parkinson, B. W. and Axelrad, P., 1988, Autonomous GPS Integrity Monitoring Using the Pseudorange Residual, NAVIGATION, ION, Vol. 35, No. 2, pp. 255-274.   DOI