Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Fixed-wing Aircraft Course Control in Significant Wind

강한 바람조건에서의 고정익 항공기 코스제어 기법

  • Lee, Hongju (Aerospace Technology Research Institute, Agency for Defense Development)
  • 이홍주 (국방과학연구소 항공기술연구원)
  • Received : 2019.01.30
  • Accepted : 2019.04.12
  • Published : 2019.06.05
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Abstract

Basically the dynamics of the fixed-wing aircraft is based on the airspeed which is relative to the wind, but when it comes to the track guidance and control, ground speed is the factor to be considered. Especially in the case of low-speed fixed-wing unmanned aerial vehicles the difference between the airspeed and the ground speed is significant depending on wind conditions, so that the heading control and the course control have to be designed separately. This paper represents the course control method using the pre-designed heading control gains which meet the desired characteristics. Also, waypoint guidance and control algorithms are suggested applying this control method. Finally the robustness of the proposed method is confirmed by 6-DoF nonlinear simulation.

Keywords

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Fig. 1. Line tracking

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Fig. 2. Circling

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Fig. 3. Trajectory of line-tracking in tailwind

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Fig. 4. Trajectory of line-tracking in headwind

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Fig. 5. Attitude of line-tracking in tailwind

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Fig. 6. Attitude of line-tracking in headwind

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Fig. 7. Trajectory of circling

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Fig. 8. Attitude of circling

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Fig. 9. AS & GS of circling

Table 1. Simulation condition

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References

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