Comparison of empirical and predicted ultraviolet aircraft signatures

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dc.contributor.authorJames, Itor
dc.contributor.authorRichardson, Mark A.
dc.contributor.authorO'Keefe, Eoin
dc.date.accessioned2019-02-27T09:57:57Z
dc.date.available2019-02-27T09:57:57Z
dc.date.issued2019-02-09
dc.description.abstractIn light of the potential threat to aircraft from missiles using ultraviolet (UV) wavebands, it is important to understand the signature of an aircraft and how this can be predicted. This study compares empirical UV signature data to modeled data from camouflage electro-optical simulation (CAMEOSIM) to determine how well the contrast between the object and the background can be predicted using local knowledge of the atmosphere. CAMEOSIM uses the standard moderate resolution atmospheric transmission (MODTRAN) model to estimate the radiative transfer through the atmosphere. Both MODTRAN and CAMEOSIM are well validated in visible and infrared wavebands, and MODTRAN can accurately predict UV radiative transfer. Unfortunately, the work so far has concentrated on bulk transfer to describe the sky background in the UV where the aircraft scene is typically a negative contrast “hole” in a positive sky background. Importantly, path-to-path scattering is a key consideration in this scene since it is this that will tend to blur the edges of an object and reduce the contrast associated with it. A developed understanding of the limitations is required. It is determined that prediction is possible up to the ranges of 5 km. The local visibility (in km) is required for this prediction.en_UK
dc.identifier.citationItor James, Mark Richardson and Eoin O'Keefe. Comparison of empirical and predicted ultraviolet aircraft signatures. Optical Engineering, Volume 58, Issue 2, 2019 Article number 025103en_UK
dc.identifier.issn0091-3286
dc.identifier.urihttps://doi.org/10.1117/1.OE.58.2.025103
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/13945
dc.language.isoenen_UK
dc.publisherSPIEen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectultravioleten_UK
dc.subjectaircraften_UK
dc.subjectsignatureen_UK
dc.subjectpredictionen_UK
dc.subjectmodellingen_UK
dc.subjectatmosphereen_UK
dc.titleComparison of empirical and predicted ultraviolet aircraft signaturesen_UK
dc.typeArticleen_UK

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