Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
권호 표지

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

강결합방식의 GPS/INS 시스템에 대한 측정치 시간지연 추정 연구

  • Published : 2008.08.30
Download PDF
⟨ Previous Next ⟩

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

References

  1. Kenneth R. Britting, 'Inertial Navigation Systems Analysis', John Wiley & Sons, Inc., 1971
  2. George M. Siouris, 'Aerospace Avionics Systems', Academic Press, Inc., 1993
  3. 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
  4. Tuan Manh Pham, 'Kalman Filter Mechanization for INS Airstart', IEEE AES system Magazine, January 1992
  5. Donald T. Knight, 'Rapid Development of Tightly-coupled GPS/INS Systems', IEEE AES Systems Magazine, pp. 14-18, February 1997
  6. 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 https://doi.org/10.1109/7.599254