제어로봇시스템학회:학술대회논문집

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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A SDINS Error Compensation Scheme Using Star Tracker

  • Yim, Jong-Bin (Department of Electronics Engineering, Chungnam National University) ;
  • Lyou, Joon (Department of Electronics Engineering, Chungnam National University) ;
  • Lim, You-Chol (Department of Electronics, Korea Aerospace Research Institute)
  • Published : 2005.06.02
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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 flight missions. This paper presents a navigation error compensation scheme for Strap-Down Inertial Navigation System(SDINS) using star tracker. To be specific, SDINS error model and measurement equation are derived, and Kalman filter is implemented. Simulation results show the boundedness of position and attitude errors.

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