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http://dx.doi.org/10.3807/KJOP.2019.30.1.001

Theoretical Analysis of the Lock-on Range of a Man-portable Air Defense System Under Foggy Conditions with the Radiative-transfer Equation  

Seok, In Cheol (Nano Photonics Laboratory, School of Mechanical Engineering, Yonsei University)
Lee, Chang Min (Nano Photonics Laboratory, School of Mechanical Engineering, Yonsei University)
Hahn, Jae W. (Nano Photonics Laboratory, School of Mechanical Engineering, Yonsei University)
Publication Information
Korean Journal of Optics and Photonics / v.30, no.1, 2019 , pp. 1-7 More about this Journal
Abstract
MANPADS (man-portable air defense system) is a counterweapon system against enemy aircraft, tracking the MWIR (mid-wavelength of infrared) signature of the plume. Under foggy conditions, however, multiple scattering phenomenon caused by the particles affects the MWIR transmittance, and the MANPADS detection performance. Therefore, in this study we analyzed the lock-on range of MANPADS with varying fog conditions and plume characteristics. To analyze the optical extinction properties and transmittance in fog, Mie scattering theory and analytic solution of the radiative-transfer equation are utilized. In addition, we used flare signature as an alternative MWIR light source. We confirmed that the lock-on range could be noticeably reduced under conditions of mist, and proportional to the flare temperature.
Keywords
MANPADS; Lock-on range; Fog; Radiative transfer equation; Analytic solution;
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