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1、重庆大学硕士学位论文II英文摘要ABSTRACTInthisthesis,thesignalacquisitionandprocessingsystembasedonARMisstudied,whichisthekeytechnologyofthedigitalmicromirrorspectrometerprototypepreviousbuildedinourlaboratory,whichisforfoodsafetymonitoring.Theembeddeddesignschemeofthespectrometerpu
2、tsthefunctionssuchasdetection,acquisition,display,analysisallinoneandtheoverallsystemisfixed,whichallowsmonitoringfoodsafetyon-lineandoutlaboratory.That’susefultosolvefoodsafetyproblemsandpromotethedevelopmentoffoodsafetymonitoring.Themainresearchworksareasfollows:①A
3、nalyzethecurrentsituationofsignalacquisitionsystemandinformationprocessingmethodofthedigitalmicromirrorspectrometerathomeandabroad,andsummarizethemainproblemsofvarioussolutions.Thencombinewiththedigitalmicromirrorspectrometerprototypeofourlaboratorytodeterminethemain
4、researchcontentsofthisthesis;②Analyzeseveralpopularprocessors,operatingsystemsanddevelopmentenvironments,andselecttheproperschemeofthedigitalmicromirrorspectrometerprototypeofourlaboratory.DeterminetheoveralldesignschemeofsignalacquisitionandprocessingbasedonARM;③Det
5、erminethesignalacquisitionprogramofthedigitalmicromirrorspectrometerbasedonARM;StudytheADCconversionprincipleandthendeterminetheparametersinordertomeettherequirementsoftheOK6410developmentboardandthespectrometer;Meanwhile,designADCbottomdrive,interruptcontrolandcondi
6、tioningcircuit;④AcomplementarySmatrixencodingalgorithmisproposedtoimprovethetraditionalHadamardtransformsignalprocessingalgorithm.Throughmodelinganalysis,theimprovementsofnoiseandenergybasedonthecomplementarySmatrixisstudied;⑤Designthesoftwareforthedigitalmicromirror
7、spectrometer;Developethefilesbasicoperationmodule,coordinateofgraphicdisplaymodule,spectralpreprocessingmodule,Hadamardtransformmodule,spectralcalibrationmodulesandsoon.Throughtestingsoftware,allofthemodulescanmeetthedesignrequirements;⑥Setuptheexperimentalplatform，a
8、ndtestthesignalconditioningcircuitandOK6410developmentboardacquisitionmodule.TheresultshowsthatachievetheIII重庆大学硕士学位论文phase-lockedc
