title: Infrared propagation and performance modeling at the Electro-Optical Test Facility.
abstract: Fog spectral transmission data generated in the Electro-Optical Test Facility and propagation models usedm by the authors are presented. Preliminary results of a modeling effort are presented that support the following conclusions: (1) atmosphere emission is a major factor in IR system performance despite the fact it is commonly omitted; (2) the 3.5-4.1-microm interval offers superior performance to the 3-5 band at both relatively short and long ranges; and (3) the longer wavelength 9.5-11.5-microm band is superior to either the 3-5 or 3.5-4.1 bands in the presence of fog.
authors.forename: D G
authors.initials: DG
authors.lastname: Crowe
authors.forename: D K
authors.initials: DK
authors.lastname: Cohen
authors.forename: E L
authors.initials: EL
authors.lastname: Dereniak