模擬沙塵條件下的太赫茲波透射特性研究.pdf

1、首都師范大學(xué)碩士學(xué)位論文模擬沙塵條件下的太赫茲波透射特性研究姓名：李宇曄申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：光學(xué)指導(dǎo)教師：李福利20080510Abstract：Sand—duststorminourcountrynorthwestplacessuchasMongoliasomearidareasisverycommon1tevenalsooccasionallyarrivesincapitalBeijingTypicalTHzwavelength

2、is300Um，fromnearthesizedistributionofdustparticlesintheatmosphereThereforeiftheconsiderationdesign。themanufacturetooterahertzwavecommunicationequipment，mustconsidertootheterahertzwavewhenpassesthesandstormsignalsituation

3、ThepresentpaperfootholdexistingexperimentaIconditiontosimulatesunderthesandstormconditiontooahertzcorrespondence。sensingimageformationtocarryonthesandstorminfluencetheexperimentaIstudySeparatelyhastestedundertenkindofdif

4、ferentsanddustsourceconditioninthetransmissiontype100hertztimedomainspectrumsystemandunderthereflectiontypetoolerahertztimedomainspectrumsystemthetimedomainspectrum，hasanalyzedpowerspectrum，therefractiveindexandthetransm

5、itlancespectralIineStudiesthetransmissionwhichtherefractionimagewiththescatteringoptics’Mietheory’SresearchtechniqueandtheanalysisobtainsThisarticleobtainssomefirstfruitswilIcontinuethethoroughresearchforIatertoaccumulat

6、ethedataandlheinformationThedifferentorigin’SsanddustwhenthewindpoweriSnottoobigiSnottoobigtothehertzianwaveextinctionabilitydifferenceterahertwavehasthegoodpenetrabilitytoitTheexperimentobtainsinapproximatelythird1evelw

7、indpowersituation：Theapproximately100milligramseachcubicmeterairto01arrivesatbetween10THzincludingthesanddustthehertzianwaverefractiveindextooapproximatelybelow13。andreducesgraduallyalongwithfrequencyclose1OTHzSimultaneo

8、uslyobtainsinlhisfrequencyrangetoothehertzianwavetransmissioncoeffIcientstartsfrom09teducegraduallyWhenlhewindpowerfurtherincreasesbecausejntheairmixeswithadiameterbiggerpellet，andthepelletdistributesnon—uniform，whenthep

9、elletpassesthroughorapproachestooahertzpathofrays，tothesignalresultwillhavethetremendousinfluence，causesthesurveytheresultnottobeveryunstableRegardingthiswhenobtainstherefractiveindexjmageusestheindexfittingobtainswhenre

10、sultandIOWwindpowerobtainstheresultiSsimilarPresentpapeCschapterarrangementiSasfoIlows：ThefirstchapterjntroducedthesandstormaswelIasunderthesandstormconditionopticaldetectiondifficultyThesecondchapterintroducedthelightsc

11、atteringcorrelationtheoriesandtheresearchtechniqueThethirdchapterintroducedtoothehertzradiationelementarytheoryThefourthchapterhasstudiedtootheterahertzwavewiththetransmissiontypetimedomaintoohertzspectrumsystemtothesand