室內(nèi)安檢毫米波輻射特性分析與圖像特征提取.pdf

1、聲明本學(xué)位論文是我在導(dǎo)師的指導(dǎo)下取得的研究成果，盡我所知，在本學(xué)位論文中，除了加以標(biāo)注和致謝的部分外，不包含其他人已經(jīng)發(fā)表或公布過(guò)的研究成果，也不包含我為獲得任何教育機(jī)構(gòu)的學(xué)位或?qū)W歷而使用過(guò)的材料。與我一同工作的同事對(duì)本學(xué)位論文做出的貢獻(xiàn)均己在論文中作了明確的說(shuō)明。研究生簽名：a照M弓年3月為日學(xué)位論文使用授權(quán)聲明南京理工大學(xué)有權(quán)保存本學(xué)位論文的電子和紙質(zhì)文檔，可以借閱或上網(wǎng)公布本學(xué)位論文的部分或全部?jī)?nèi)容，可以向有關(guān)部門或機(jī)構(gòu)送交并授權(quán)

2、其保存、借閱或上網(wǎng)公布本學(xué)位論文的部分或全部?jī)?nèi)容。對(duì)于保密論文，按保密的有關(guān)規(guī)定和程序處理。研究生簽名：七迪如1弓年3月弦日AbstractSincetheincreaseofterroristincidentsandthedeteriorationofnationalsecurityissuestheworldbegintopayattentiontothepublicsafetyproblems，attheSalTletime，th

3、eyfocusontmprovmgtheaccuracyandeffectivenessofsecuritydetectionsystemThemetalsecuritydoors，X—raydetectorsandinfrareddetectorswhichwerewidelyusedintheearlvpublicsecuritysystemshavetheirrespectiveshortcomings，whiletheappea

4、ranceofpassiveMillimeter’wave(MMW)systemhasmadeuptheshortcomingsMMWhasstrongpenetration，highprecisionandtheabilitytoworka11time，a11weatherOnt11eotllerhaIldthepassiveMMWsystemdoesnotradiateelectromagneticwaves，andtherewil

5、lbenodamagetohumanorotherobjectsInOurcountry，duetothelimitationoftechnologyandequipmentthepassiveMMWsecuritysystemisstillintheinitialstageSothispaperfocusontheanalysisandresearchofMMWsystem，includingbasictheoryofMMW，radi

6、ationcharacteristicsofconcealedobjectshiddenunderclothing，passiveMMWimagingsystemsandimageprocessing，thesummaryasfollows：(1)Introducethedevelopmenthistoryofthesecuritysystem，expoundingtheadvantagesofMMWimagingappliedtose

7、curitysystemsandtheresearchstatusbothindomesticand0Verseas(2)DescribethebasictheoryofMMWradiation，therelationshipbetweenantennatemperatureandtheradiometerpowerThefullpowerradiometerandcomparativeradiometerhavealsobeenint

8、roducedabouttheirtechnicalindicatorS，advantagesaJlddisadvantages(3)UsetwomethodstoanalyzetheradiationcharacteristicsoftheCOncealedobjectsunderhumanbodyFromtheperspectiveofradiationmeasurement，webuilttheanalysismodelofant

9、ennatemperaturecontrastbetweentheconcealedobjectandthehumanbody，thendiscussedtherelationshipbetweenantennatemperaturecontrastaIldclottlingtransmissivityunderthecircumstancesofindoorandoutdoorOntheotherhandfbmtheperspecti

10、veofmulti—layeredmedium，thesurfacebrightnesstemperaturemodeloftheconcealedobjectswasbuiltThencalculatedthecoherentreflectivitybyusingtheequivalenttransmissionlineandanalyzedtherelationshipbetweentheclothinglayerthickness