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dc.contributor.advisorCooper, Alfred W.
dc.contributor.advisorDavis, D. Scott
dc.contributor.advisorPlatzer, Max F.
dc.contributor.authorLeite, Clelio Dinis Ferreira
dc.dateDecember 1995
dc.date.accessioned2012-07-31T19:53:00Z
dc.date.available2012-07-31T19:53:00Z
dc.date.issued1995-12
dc.identifier.urihttp://hdl.handle.net/10945/7466
dc.description.abstractThe present work investigates the aerothermal effects on the electro-optical performance of a conceptual infrared seeker missile at Mach 4 at small angles of attack. Two window dome configurations are studied: an optical hemisphere and ellipsoidal shape window attached to a 3:1 ogive nose. A three dimensional thin-layer compressible flow solver is used to compute the flow field in front of the window and the window aerodynamic heating. A solution adaptive-grid scheme is applied to accurately compute the flow field and capture the bow shock. Noise-Equivalent-Temperature-Difference degradation due to 'background' noise of the hot window is derived and computed for 3 levels of array non-uniformity for a range of mean dome temperatures covering the whole supersonic regime. Acquisition range for a staring sensor is estimated for several maritime scenarios modeled by LOWTRAN code. Background photon flux distribution on an array generated by the hot dome is computed using radiation transfer methods using the dome temperature field obtained by computational fluid dynamic methods. It is found that array non-uniformity has a strong influence on the seeker performance. This study indicates that the non-uniformity of the dome temperature has significant influence on the array fixed pattern noise induced by dome emission and so in the seeker detection and tracking ability.en_US
dc.description.urihttp://archive.org/details/aerothermaleffec109457466
dc.format.extent172 p.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.titleAerothermal effects on the infrared seeker staring sensor performance of high supersonic missilesen_US
dc.typeThesisen_US
dc.contributor.departmentPhysics
dc.description.servicePortuguese Navy author.en_US
etd.thesisdegree.nameM.S. in Physicsen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplinePhysicsen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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