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

Institute of Control, Robotics and Systems (제어로봇시스템학회)
권호 표지
DOI QR코드

DOI QR Code

Performance Improvement of INS Velocity-aided GPS Carrier Tracking Loop

INS 속도 정보를 사용한 GPS 반송파 추적 루프의 성능 향상

  • 김정원 (충남대학교 전자공학과) ;
  • 이상정 (충남대학교 전기정보통신공학부) ;
  • 황동환 (충남대학교 전기정보통신공학부)
  • Published : 2006.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents performance improvement of the INS velocity-adided GPS carier tracking loop. To this end, INS velocity-aided GPS carrier tracking loop was modeled as a feedfoward and a feedback loop system. In the phase tracking loop, it was shown that the tracking error caused by the dynamic motion of the vehicle can be compensated with the aiding of the INS information irrespective of the loop order and bandwidth. However, the signal trcking error increases as the INS error increases. It was also shown that in order to remove the tracking error caused by INS bias error, more than or equal to 2nd order PLL should be used. Experiments were carried out and the experimental results were compared with the analysis results.

Keywords

References

  1. E. D. Kaplan, Understanding GPS : Principles and Applications, Artterch House, Boston, 1996
  2. B. W. Parkinson and J. J. Spliker, Global Positioning System : Theory and Applications volume I, AlAA Inc. Washington DC, 1996
  3. P. Misra and P. Enge, Global Positioning System : Signals, Measurement and Performance, Ganga-Jamuna Press, Massachusetts, 2001
  4. S. Alban, and D. Gebre-Egziabher, 'Performance analysis and architectures for INS-aided GPS tracking Loops,' Proceedings of the ION NTM-03, Anaheim, CA, January 2003
  5. S. Alban, Design and Performance of a Robust GPS/INS Attitude System For Automobile Applications, Ph.D. Thesis, Stanford University, 2004
  6. G. Johnson, M. Lage, and et al, 'The JPALS performance Model,' Proceeding of the ION-GPS 2003, Portland, OR, September 2003
  7. J. F. Wagner, and G. Kasties, 'Improving the GPS/INS integrated system performance by increasing the distance between GPS antennas and inertial sensors,' Proceedings of the ION NTM-02, San Diego, CA, January 2002