RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI등재

        Robust Trajectory Tracking Control and Obstacles Avoidance Algorithm for Quadrotor Unmanned Aerial Vehicle

        Baqir Nasser AbdulSamed,Ammar A. Aldair,Auday Al‑Mayyahi 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.2

        This paper addresses the designing of a robust controller for an automatic landing, trajectory tracking and take-of missions of quadrotor unmanned aerial vehicle (QUAV). This has been investigated where the QUAV’s dynamic model involves nonlinearity, uncertainties, and coupling which makes the QUAV has a very complex system. The proposed controller can control both the position and orientation in addition to control the driving motors. For controlling the position, an appropriate control signal is generated for adjusting the altitude of the QUAV in a working space. To achieve this, three adaptive fuzzy controllers have been designed for three-dimensional coordinates i.e. x, y and z axes. For orientation control, three proportional derivative integral controllers (PIDCs) are introduced to control pitch, roll and yaw angles and make them reaching the desired values. Moreover, PID controllers are proposed for controlling the four driving motors. The parameters of both fuzzy and PID controllers are tuned by using particle swarm optimization (PSO) algorithm which enables the selection of the optimal values for each controller. For comparison purposes, the adaptive fuzzy controllers in the frst layer of the proposed control system are replaced with PIDCs to prove the efectiveness of the proposed control system. Furthermore, a Lyaounov theory is utilized for studying the stability of fuzzy controllers. The proposed control system is capable of guiding the QUAV to track the previously defned reference trajectories. For obstacle avoidance, a vector feld histogram algorithm is used to avoid collision of the QUAV with obstructing obstacles that block the QUAV’s path.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼