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

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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IR Susceptibility of Supersonic Aircraft according to Omni-directional Detection Angle

초음속 항공기 전방위 탐지각도에 따른 적외선 피격성 분석

  • Nam, Juyeong (Department of Mechanical Engineering, Yonsei University) ;
  • Chang, Injoong (Department of Mechanical Engineering, Yonsei University) ;
  • Park, Kyungsu (Aerospace Technology Research Institute, Agency for Defense Development) ;
  • Cho, Hyung Hee (Department of Mechanical Engineering, Yonsei University)
  • 남주영 (연세대학교 기계공학과) ;
  • 장인중 (연세대학교 기계공학과) ;
  • 박경수 (국방과학연구소 항공기술연구원) ;
  • 조형희 (연세대학교 기계공학과)
  • Received : 2021.05.27
  • Accepted : 2021.09.24
  • Published : 2021.12.05
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Abstract

Infrared guided weapons act as threats that greatly degrade the survivability of combat aircraft. Infrared weapons detect and track the target aircraft by sensing the infrared signature radiated from the aircraft fuselage. Therefore, in this study, we analyzed the infrared signature and susceptibility of supersonic aircraft according to omni-directional detection angle. Through the numerical analysis, we derived the surface temperature distribution of fuselage and omni-directional infrared signature. Then, we calculated the detection range according to detection angle in consideration of IR sensor's parameters. Using in-house code, the lethal range was calculated by considering the relative velocity between aircraft and IR missile. As a result, the elevational susceptibility is larger than the azimuthal susceptibility, and it means that the aircraft can be attacked in wider area at the elevational situation.

Keywords

Acknowledgement

본 연구는 방위사업청과 국방과학연구소가 지원하는 항공 피탐지 감소기술 특화연구실 사업의 일환으로 수행되었습니다.

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