Thermal imaging through the atmosphere: atmospheric MTF

D. Sadot

doi:10.1117/12.2308551

26 July 1993 Thermal imaging through the atmosphere: atmospheric MTF

D. Sadot

Proceedings Volume 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology; 19833O (1993) https://doi.org/10.1117/12.2308551
Event: 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 1993, Budapest, Hungary

Abstract

Both active and passive atmospheric modulation transfer function (MIT) measurements carried out simultaneously in both thermal imaging atmospheric windows are presented. Results indicate rather significant angular spatial frequency dependence of the MTF, in contradiction to the conventional approach which assumes contrast transfer is atmospheric transmission only. A theoretical explanation is presented, indicating very dominant effects of both aerosol forward scattering and absorption of light, particularly in the thermal infrared spectral range.

Citation Download Citation

D. Sadot "Thermal imaging through the atmosphere: atmospheric MTF", Proc. SPIE 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 19833O (26 July 1993); https://doi.org/10.1117/12.2308551

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