微波干涉儀的設(shè)計(jì)與應(yīng)用.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：?jiǎn)翁J，辭p期學(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(mén)或機(jī)構(gòu)送交并授權(quán)其保存

2、、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：矽∥6年；月紗日Abstract碩士學(xué)位論文AbstractMicrowaVeinterflerometeris謝delyusedinnationaldefense，aerospace，mallufacturing，aIldotherfields，forthedesi盟鋤dapplicationofmicrowaVeinterferomet

3、erresearchisofgreatsigllificanceThispaperbrienyintroducestheprincipleofmicrowaveinterferometer，mestructureofmicrowaVeinterferometerwithasingleantennaisdesigned，TlleRF丘ont—endhardwareofmicrowaVeinte疵rometerisaCcomplished，

4、aIldrealizememinianlrizationof廿lesystemThenatwo‘waysignalacquisitionsystembaSedonADFPGAisalsodesignedaccordingt0therequirementsoftheproject，completethesystemdebuggingSecondly，baSedontheaboVemicrowaVeinterfIerometersystem

5、，theapplicationoftherelatiVedisplacementme2LsurementisstudiedThemeasuringprincipleisanalyzed，andthemeasudngfomlllJaisdeducedFocusesont11ethreekeytechnologiesformeaSurementprocess：phaSeunMapping、circulatorleakageenorallal

6、ysisa11dcalibration，aIldtheen0ranaJysisofmequadraturemixerAccordingtomeexperimentaJldCIataprocessing，theprecisioncanreach00lmmaRerthecalibrationAgain，asignatureextractionh0mtargetswithmicro—motionsbaSedonmicrowaveinterfe

7、rometerisstudied，aIldthe印plicationofrotatingmachineryfaultdetectionareanalyzedThispaperbrienyintroducestheconceptofmicro—motionandmicroDopplerfbature，themodelofrotatingline—shapedtargetissetup，theapproachisproposedforpar

8、ameterestimationofrotatingline—sh印edtaurgetARertheexperimenttest，theenorislessthall5％PutsfIorwardtwokindsofdetectionmethodsforthefaultdetectiononeisbaSedonmesignatureextractionfromrotating1inesh印edta略et，theotherisbasedon

9、shorttimeFouriertransform(STFT)，andthefeasibilit)rofthemetllodsareverifiedbyexperimentTheadVaIltagesanddisadVantagesoftwomethodsarecomparedFirlally，thethesisissummarized，andtllefurtherimprovementsareadvisedKeywOrds：micro