Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Error Analysis of Modernized GPS and Galileo Positioning

현대화된 GPS와 Galileo를 이용한 위치 결정에서의 오차해석

  • 황동환 (충남대학교 전기정보통신공학부) ;
  • 이상정 (충남대학교 전기정보통신공학부) ;
  • 박찬식 (충북대학교 전기전자컴퓨터공학부)
  • Published : 2005.07.01
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Abstract

The expected positioning accuracies of civil users utilizing modernized GPS and Galileo are derived using the error analysis in this paper. Since, in general, the performance of DLL, PLL and FLL is proportional to chip lengths and wavelengths, the positioning accuracies from various measurements of modernized GPS and Galileo are derived as function of chip length and wavelength. These results are compared with that from GPS Ll measurement. In absolute positioning, compared to GPS C/A code only case, more than 17 times performance improvement is expected when all civil code signals of modernized GPS and Galileo (L1, L2, L5, E1, E5A and E5B) are used. In relative positioning, compared to GPS L1 carrier phase only case, more than 2 times performance improvement is expected when all civil signals of modernized GPS and Calileo are used. Furthermore, the relationship between GDOP and RGDOP in single frequency case is expanded to general case where multiple frequencies and both code and carrier phase measurements are used.

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References

  1. R. D. Fontana, W. Cheung, T. Stansell, 'The Modernized L2 Civil Signal, Leaping Forward in the 21st Century,' GPS World, September 1,2001
  2. J.-L. IssIer, G. W. Hein, J. Godet, J.-C. Martin, P. Erhard, R. Lucas-Rodriguez, T. Pratt, 'Galileo Frequency & Signal Design,' Galileo's World, June 1, 2003
  3. 이상정외, 갈릴레오 국가 인프라 구축을 위한 타당성조사 및 기술개발 기획연구 최종연구개발 결과보고서, 해양수산부, 2004
  4. EC and ESA, Galileo Mission High Level Definition, Sept. 2002
  5. B. Hofmann-Wellenhof, H. Lichtenegger and J. Collins, Global Positioning System : Theory and Practice, Springer-Verlag, Wien, Austria, 1993
  6. E. D. Kaplan, Understanding GPS, Principles and Applications, Artech House Publisher, Boston, 1996
  7. 박찬식, 'GPS를 이용한 위치 결정에서의 오차해석,' 제어.자동화.시스템공학 논문지, 제 7 권 제 6 호,2001.6
  8. C. Park, I. Kim, 'Comments on 'Relationships between Dilution of Precision for Point Positioning and for Relative Positioning with GPS,' IEEE Transaction on Aerospace and Electronics Systems, vol. 36, no. 1, pp. 315-316, 2000 https://doi.org/10.1109/7.826336

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