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Control of Focal Plane Compensation Device for Image Stabilization of Small Satellite Camera

소형 위성 카메라의 영상안정화를 위한 초점면부 보정장치의 제어

  • Kang, Myoungsoo (Dept. of Aerospace and Mechanical Engineering, Graduate School at KAU) ;
  • Hwang, Jaihyuk (Dept. of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Bae, Jaesung (Dept. of Aerospace and Mechanical Engineering, Korea Aerospace University)
  • 강명수 (한국항공대학교 항공우주 및 기계공학과) ;
  • 황재혁 (한국항공대학교 항공우주 및 기계공학부) ;
  • 배재성 (한국항공대학교 항공우주 및 기계공학부)
  • Received : 2016.01.02
  • Accepted : 2016.03.17
  • Published : 2016.03.31

Abstract

In this paper, position control of focal plane compensation device using piezoelectric actuator is conducted. The forcal plane compensation device installed on earth observation satellite camera compensates micro-vibration from reaction wheels. In this study, four experimental models of the open-loop compensation device are derived using MATLAB system identification toolbox in the input range of 0~50Hz. Subsequently, the PID controller for each model is designed and the performance test of each controller is conducted through MATLAB/Simulink. According to frequency response analysis of the closed-loop compensation device system, the PID controller designed for 38~50Hz input range has enough tracking performance for the whole 0~50Hz input range. The maximum output error is about $1{\mu}m$ for the input range. The simulation results has been verified by the experimental method.

Keywords

References

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