Browse > Article
http://dx.doi.org/10.5302/J.ICROS.2006.12.8.739

Performance Improvement of INS Velocity-aided GPS Carrier Tracking Loop  

Kim Jeong-Won (충남대학교 전자공학과)
Lee Sang-Jeong (충남대학교 전기정보통신공학부)
Hwang Dong-Hwan (충남대학교 전기정보통신공학부)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.12, no.8, 2006 , pp. 739-745 More about this Journal
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
phase locked loop; velocity-aiding; tracking error;
Citations & Related Records
연도 인용수 순위
  • Reference
1 G. Johnson, M. Lage, and et al, 'The JPALS performance Model,' Proceeding of the ION-GPS 2003, Portland, OR, September 2003
2 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
3 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
4 S. Alban, Design and Performance of a Robust GPS/INS Attitude System For Automobile Applications, Ph.D. Thesis, Stanford University, 2004
5 B. W. Parkinson and J. J. Spliker, Global Positioning System : Theory and Applications volume I, AlAA Inc. Washington DC, 1996
6 E. D. Kaplan, Understanding GPS : Principles and Applications, Artterch House, Boston, 1996
7 P. Misra and P. Enge, Global Positioning System : Signals, Measurement and Performance, Ganga-Jamuna Press, Massachusetts, 2001