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dc.contributor.authorSorensen, Ira Josephen_US
dc.date.accessioned2014-03-14T20:19:52Z
dc.date.available2014-03-14T20:19:52Z
dc.date.issued2002-11-15en_US
dc.identifier.otheretd-12062002-205031en_US
dc.identifier.urihttp://hdl.handle.net/10919/29955
dc.description.abstractA primary objective of the effort reported here is to develop a radiometric instrument modeling environment to provide complete end-to-end numerical models of radiometric instruments, integrating the optical, electro-thermal, and electronic systems. The modeling environment consists of a Monte Carlo ray-trace (MCRT) model of the optical system coupled to a transient, three-dimensional finite-difference electrothermal model of the detector assembly with an analytic model of the signal-conditioning circuitry. The environment provides a complete simulation of the dynamic optical and electrothermal behavior of the instrument. The modeling environment is used to create an end-to-end model of the CERES scanning radiometer, and its performance is compared to the performance of an operational CERES total channel as a benchmark. A further objective of this effort is to formulate an efficient design environment for radiometric instruments. To this end, the modeling environment is then combined with evolutionary search algorithms known as genetic algorithms (GA's) to develop a methodology for optimal instrument design using high-level radiometric instrument models. GA's are applied to the design of the optical system and detector system separately and to both as an aggregate function with positive results.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartdissertation.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectMonte Carlo ray traceen_US
dc.subjectgenetic algorithmsen_US
dc.subjectradiometryen_US
dc.subjectremote sensingen_US
dc.titleDesign and analysis of radiometric instruments using high-level numerical models and genetic algorithmsen_US
dc.typeDissertationen_US
dc.contributor.departmentMechanical Engineeringen_US
dc.description.degreePh. D.en_US
thesis.degree.namePh. D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineMechanical Engineeringen_US
dc.contributor.committeechairMahan, James Roberten_US
dc.contributor.committeememberScott, Elaine P.en_US
dc.contributor.committeememberVick, Brian L.en_US
dc.contributor.committeememberGürdal, Zaferen_US
dc.contributor.committeememberPriestley, Kory J.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-12062002-205031/en_US
dc.date.sdate2002-12-06en_US
dc.date.rdate2003-12-13
dc.date.adate2002-12-13en_US


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