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A Study on the Measurement Time-Delay Estimation of Tightly-Coupled GPS/INS system  

Lee, Youn-Seon (ADD)
Lee, Sang-Jeong (Chungnam National University)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.11, no.4, 2008 , pp. 116-123 More about this Journal
Abstract
In this paper we study the performance of the measurement time-delay estimation of tightly-coupled GPS/INS(Global positioning system/Inertial Navigation system) system. Generally, the heading error estimation performance of loosely-coupled GPS/INS system using GPS's Navigation Solution is poor. In the case of tightly-coupled GPS/INS system using pseudo-range and pseudo-range rate, the heading error estimation performance is better. However, the time-delay error on the measurement(pseudo-range rate) make the heading error estimation performance degraded. So that, we propose the time-delay model on the measurement and compose the time-delay estimator. And we confirm that the heading error estimation performance in the case of measurement time-delay existence is similar with the case of no-delay by Monte-Carlo simulation.
Keywords
Tightly-Coupled; Heading Error; Time-Delay;
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  • Reference
1 George M. Siouris, 'Aerospace Avionics Systems', Academic Press, Inc., 1993
2 H. Carvalho, P. Del Moral, 'Optimal Nonlinear Filtering in GPS/INS Integration', IEEE Aerospace and Electronic systems, Vol. 33, No. 3, pp. 835-850, July 1997   DOI   ScienceOn
3 Donald T. Knight, 'Rapid Development of Tightly-coupled GPS/INS Systems', IEEE AES Systems Magazine, pp. 14-18, February 1997
4 Tuan Manh Pham, 'Kalman Filter Mechanization for INS Airstart', IEEE AES system Magazine, January 1992
5 Kenneth R. Britting, 'Inertial Navigation Systems Analysis', John Wiley & Sons, Inc., 1971
6 Michael F. Lynch, Donald J. Weber, 'Flight Test Results of a Tightly Integrated RLGBased Global Positioning System/Inertial Navigation System', IEEE, pp. 421-428, 1990