• design and implementation of a robust and nonlinear flight control system for an unmanned helicopter

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1197
    • تعداد پرسش و پاسخ ها: 0
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      in this work, we focus on the design and implementation of a robust flight control system for anunmanned helicopter. a comprehensive nonlinear model for an unmanned helicopter system, which is built by our research team at the national university of singapore, is first presented. a three-layer control architecture is then adopted to construct an automatic flight control system for the aircraft, which includes (1) an inner-loop controller designed using the h1 control technique to internally stabilize the aircraft and at the same time yield good robustness properties with respect to external disturbances, (2) a nonlinear outer-loop controller to effectively control the helicopter position and yaw angle in the overall flight envelope, and lastly, (3) a flight-scheduling layer for coordinating flight missions. design specifications for military rotorcraft set for the us army aviation are utilized throughout the whole process to guarantee a top level performance. the result of actual flight tests shows our design is very successful. the unmanned helicopter system is capable of achieving the desired performance in accordance with the military standard under examination.

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