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A Robust Longitudinal Landing Controller to Datalink Time Delay

데이터링크 시간지연에 강건한 종운동 착률제어기 설계

  • 이상효 (서울대학교 기계항공공학부) ;
  • 이인석 (한국기술교육대학교 메카트로닉스공학부) ;
  • 기창돈 (서울대학교 기계항공공학부) ;
  • 구훤준 (국방과학연구소)
  • Published : 2009.01.01

Abstract

This paper deals with designing a ground-based longitudinal landing controller which is robust to datalink time delays. Time delays occur because forward velocity measurements are downlinked and the controller output commands are uplinked. An $H_{\infty}$ controller was designed by using the input/output decomposition where time delay is modeled as a first-order system with Pade approximation. Linear simulations show that the system tracks well the predefined path and is robust to the variation of time delay.

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