대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

시선벡터를 이용한 관성항법장치의 보정기법

Compensation of SDINS Navigation Errors Using Line-Of-Sight Vector

  • 임유철 (충남대학교 전자공학과) ;
  • 임정빈 (충남대학교 전자공학과) ;
  • 유준 (충남대학교 전자공학과)
  • 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)
  • 발행 : 2003.07.01
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초록

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.

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