FMCW雷達(dá)料位儀信號(hào)處理系統(tǒng)的研究及應(yīng)用.pdf

1、南京林業(yè)大學(xué)碩士學(xué)位論文FMCW雷達(dá)料位儀信號(hào)處理系統(tǒng)的研究及應(yīng)用姓名：宋換榮申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：測(cè)試計(jì)量技術(shù)及儀器指導(dǎo)教師：封維忠20070601StudyontheSignalProcessingSystemoftheFMCWRadarMaterialLevelMeasuringInstrumentandItsApplicationAbstractRadarmeansusingradiodetectingandrangingth

2、etargetOnthewhole，ithastwotasks，oneisfindingthetarget；theotherismeasuringtheparametersofthetargetFrequencyModulatedContinuousWave(FMCW)hasbeenusingforalongtimeForitsmainadvantagesareincludingsmallradiantpower，highprecisi

3、on，simpleapparatus，pronetosolidificationdesigngreatcapabilityofelectroniccounter—countermeasures(ECCM)andLowprobabilityofintercept(LPI)performanceetcItismostlyusedinmeasuringrangeandvelocity，suchaScontinuouswavealtimeter

4、，rangeRadar，automotiveanti—collisionradaretcMassiveresearchfindingshavebeendeveloped，andasuitoftheoreticalandtechnologicalsystemhasintobeingreferringtoFMCWBasedonnumerousresearchworksandanalyzingfordataacquisitionsystemo

5、fLFMCWradar，firstly，thispaperexpatiatesthetheoryaboutFMCWrangeradar，includingthecalculationofitsdetectingrangeandtimedomainanalysisandfrequencydomainanalysisofthemixingsignalAftertheanalysisontheory，thenextpartofthispape

6、risthedesignofeachcomponentoftheRadarMaterialLevelMeasuringInstrument，includingmicrowavetransceiverandsignalprocessingsystemThemeansofsignalprocessinghasabiginfluenceonrangeprecision，SOitisimportanttostudythemeansofsigna

7、lprocessingThispaperismainlyaboutthedesignofasignalprocessorthatincludeshardwareandsoftwaredesignsuchasautogaincontrolcircuit，programmableswitched—capacitorhighpassfilterfrequencymeasuringcircuit，D／AconverterThensimulati

8、onanddebugareconductedtothewholesystem，andf0110wingthatthetestresultissummedupThetestresultandexperiencegainedinoperationarehi吐lysatisfactoryItconfEmsthefeasibilityof也edesignprojeerKeywords：RadarMaterialLevelMeasuringins