資源描述：
《多通道數(shù)據(jù)采集存儲(chǔ)系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、哈爾濱工程大學(xué)碩士學(xué)位論文萬(wàn)方數(shù)據(jù)多通道數(shù)據(jù)采集存儲(chǔ)系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)ABSTRACTWiththedevelopmentofunderwateracousticengineering,arraysignalprocessingtechnologyhasbeenintroducedintounderwateracousticengineeringgradually,andassistspeopletoexplorethemysteriousoceanasanimportantresearchdirectionof
2、underwateracousticengineering.Asatypicalrepresentativeofnewtypesonarsystem,thesonararraysystemimprovesseriesofperformancescomparedtoasingletransducer,suchasdirectivity、sensitivityandgainfunction.Italsopreparesmaterialconditionsforthestudyofarraysignalprocess
3、ingtechnologyintheunderwateracousticengineering.Themultichanneldataacquisitionandstoragesystemisdesignedtomeetthepick-upsignalrecordingdemandofsonararray.Thesystemtakessynchronousacquisitionofthe48elementssonararray’spick-upsignal,whichisprocessedbythesignal
4、conditioning,andgetsthetimeinformationofdataacquisitionpointwiththehelpofGPS.Thestarttimeofdataacquisitionissynchronizedwithintegralpointtimeaccurately,theequipmentscanworksynchronouslytogetsoundfieldinformationofdifferentpointsinspaceatthesametime.Thedataac
5、quiredandthecorrespondingtimeinformationarepackedandstoredintostoragemedium.Themaincontentofthethesisincludesthedesignofsystem、thedesignandrealizationofhardwareplatform、thedesignofthecorrespondingsoftwareandsoon.TheEP2C8Q208modelsofFPGAandperipheral-richdual
6、-coreprocessorOMAPL138aretakenasthemaincontrolchip,andonthebasetheperipheralcircuitdevelopsaccordingtothefunctiondemand.Thesystemuses6piecesofADchipstocompletethe48-channelanalog-digitalconversion,accomplishesaccuratetimemanagementwiththehelpofGPSandatomiccl
7、ockandtakesSATAharddisk,whosecapacityis512GB,asstoragemediumtorecordthedataacquired.ThroughthecoordinationworkofFPGAandOMAP,thesignalinformationacquiredbyADchipsisstoredintoharddiskcompletely,whichmeetsthesystemfunction’sdemand.Atlast,testinlaboratoryandfiel
8、dexperimentaretakentoverifythesystem’sfunctionparameterandperformance.Theconsequencesofthetestsshowthatthemultichanneldataacquisitionandstoragesystemmeetseachfunctiondemand,worksteadilyandachiev
