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Autonomous Trajectory Tracking Control for a Large-Scale Unmanned Helicopter under Airflow Influence

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  • Zhi Chen
  • Xiaowei Tu
  • Qinghua Yang
  • Daobo Wang
  • Jian Fu

Abstract

In this paper, a complete nonlinear dynamic unmanned helicopter model considering wind disturbance is proposed to achieve realistic simulations and teasing out the effect of wind on the control system. The wind velocity vector which is horizontal as seen in the inertial frame can be obtained by subtracting the airspeed measured by atmospheric data computer from the inertial speed measured by GPS. The design of the controller fully considers the existence of wind, and the wind disturbance is suppressed by the method of hierarchical control combined with the integral sliding mode control (SMC). The stability proof is given. Hardware in the loop (HIL) tool is employed as a practical engineering solution, and it is an essential step in validating the new algorithm before moving to real flight experiments.

Suggested Citation

  • Zhi Chen & Xiaowei Tu & Qinghua Yang & Daobo Wang & Jian Fu, 2019. "Autonomous Trajectory Tracking Control for a Large-Scale Unmanned Helicopter under Airflow Influence," Mathematical Problems in Engineering, Hindawi, vol. 2019, pages 1-15, April.
    • Handle: RePEc:hin:jnlmpe:7320567
    DOI: 10.1155/2019/7320567
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