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 Characteristics of an Aircraft in Different Atmospheric/Background Conditions

대기/배경에 따른 계절별 항공기 적외선 방사 특성

  • Kim, Taehwan (Department of Mechanical Engineering, Yonsei University) ;
  • Song, Jiwoon (Department of Mechanical Engineering, Yonsei University) ;
  • Cha, Jong Hyun (Department of Mechanical Engineering, Yonsei University) ;
  • Bae, Ji-Yeul (Department of Mechanical Engineering, Yonsei University) ;
  • Jung, Daeyoon (The 3rd Research and Development Institute, Agency for Defense Development) ;
  • Cho, Hyung Hee (Department of Mechanical Engineering, Yonsei University)
  • 김태환 (연세대학교 기계공학과) ;
  • 송지운 (연세대학교 기계공학과) ;
  • 차종현 (연세대학교 기계공학과) ;
  • 배지열 (연세대학교 기계공학과) ;
  • 정대윤 (국방과학연구소 제3기술연구본부) ;
  • 조형희 (연세대학교 기계공학과)
  • Received : 2014.01.17
  • Accepted : 2014.07.11
  • Published : 2014.08.05
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Abstract

Infrared(IR) guided heat-seeking missiles uses IR emissions from aircraft to detect and track a target. Due to passive characteristic of the IR guidance, early detection of the missile is difficult and it is significant threat to aircraft survivability. Therefore, IR signature prediction of the aircraft is an important aspect of the stealth technology. In this study, we simulated IR signature of the aircraft in real atmospheric conditions. Aircraft surface temperature distribution was calculated by using RadthermIR code. Based on temperature distribution, IR radiance and BRDF(Bidirectional Reflectance Distribution Function) image were simulated for different weather(seasonal) and background(sky/soil) conditions. The IR contrast tendencies are not aligned with surface temperature or magnitude of target IR radiance. Therefore, it is essential to simulate IR signature with various conditions and background to acquire reliable database.

Keywords

References

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Cited by

  1. Analysis of MWIR and LWIR Signature of Supersonic Aircraft to Air-to-air and Surface-to-air Missile by Coupled Simulation Method vol.17, pp.6, 2014, https://doi.org/10.9766/KIMST.2014.17.6.764