| IR Characteristics of an Aircraft in Different Atmospheric/Background Conditions |
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Taehwan Kim, Jiwoon Song, Jong Hyun Cha, Ji-Yeul Bae, Daeyoon Jung, Hyung Hee Cho |
1Department of Mechanical Engineering, Yonsei University
2The 3rd Research and Development Institute, Agency for Defense Development |
| 대기/배경에 따른 계절별 항공기 적외선 방사 특성 |
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김태환, 송지운, 차종현, 배지열, 정대윤, 조형희 |
1연세대학교 기계공학과
2국방과학연구소 제3기술연구본부 |
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| Abstract |
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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. |
| Key Words:
IR Stealth, Surface Temperature, Aircraft IR Signature, Atmospheric/Background Conditions |
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