Role of the atmosphere in target acquisition: Models versus experiment

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Abstract

The role of the atmosphere in target acquisition modeling is investigated experimentally. Three models are compared to experimental results measured on the Golan Heights, Israel. Concepts considered are atmospheric attenuation versus atmospheric blur, and contrast limited (blur-limited) versus noise limited imaging. Results indicate that the role of the atmosphere in target acquisition is blur rather than attenuation, and that for ranges on the order of a kilometer or more target acquisition is limited by atmospheric blur rather than by hardware. A significant portion of the atmospheric blur derives from small angle forward scattering by aerosols, which actually increases measured temperature differences for ranges up to a few kilometers.

Original languageEnglish
Pages (from-to)867-878
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3436
Issue number2
DOIs
StatePublished - 1 Jan 1998
EventProceedings of the 1998 Conference on Infrared Technology and Applications XXIV. Part 1 (of 2) - San Diego, CA, USA
Duration: 19 Jul 199824 Jul 1998

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