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

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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A Study on Flight Vehicle's Attitude Changes with Respect to a Ground Station by Considering Earth Curvature

지구곡률을 고려한 지상국에서 바라본 비행체 자세 변화 연구

  • Jaewon Yang (Anheung Test Center, 6th Research and Development Institute, Agency for Defense Development) ;
  • Dongsoo Seo (Anheung Test Center, 6th Research and Development Institute, Agency for Defense Development) ;
  • Taehyeong Ha (Anheung Test Center, 6th Research and Development Institute, Agency for Defense Development)
  • 양재원 (국방과학연구소 제6기술연구원 안흥종합시험센터) ;
  • 서동수 (국방과학연구소 제6기술연구원 안흥종합시험센터) ;
  • 하태형 (국방과학연구소 제6기술연구원 안흥종합시험센터)
  • Received : 2024.11.07
  • Accepted : 2025.01.07
  • Published : 2025.04.05
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Abstract

When a ground station is tracking a flight vehicle, flight vehicle's aspect angle with respect to a ground station is required to predict a received signal strength and determine an optimal time to conduct radar handovers. When determining a flight vehicle's aspect angle with respect to a ground station, range/azimuth/elevation coordinate system referenced to a ground station and attitude(roll/pitch/yaw) of a flight vehicle are needed. If tracking range between a ground station and a flight vehicle is sufficiently far, additional compensation for roll and pitch angles should be considered. In this paper, angular compensation method for roll and pitch is proposed in a consideration of earth curvature. And then, flight vehicle's aspect angles with respect to the ground station are obtained and flight vehicle's attitude changes with respect to three ground stations are visualized.

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References

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