Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Compensation of SDINS Navigation Errors Using Line-Of-Sight Vector

시선벡터를 이용한 관성항법장치의 보정기법

  • Lim, You-Chol (Dept. of Electronics Engineering, Chungnam National University) ;
  • Yim, Jong-Bin (Dept. of Electronics Engineering, Chungnam National University) ;
  • Lyou, Joon (Dept. of Electronics Engineering, Chungnam National University)
  • 임유철 (충남대학교 전자공학과) ;
  • 임정빈 (충남대학교 전자공학과) ;
  • 유준 (충남대학교 전자공학과)
  • Published : 2003.07.01
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Abstract

Since inertial sensor errors which increase with time are caused by initial orientation error and sensor errors (accelerometer bias and gyro drift bias), the accuracy of these devices, while still improving, is not adequate for many of today's high-precision, long-duration sea, aircraft, and long-range missile missions. This paper presents a navigation error compensation scheme for Strap-Down Inertial Navigation System (SDINS) using Line-Of-Sight(LOS) vector from star sensor. To be specific, SDINS error model and measurement equation are derived, and Kalman filter is implemented. Simulation results show the bounded-ness of position and attitude errors.

Keywords