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1、ABSTRACTABSTRACTWiththedevelopmentandcompletionofexistingdistributedradarsimulationsystem,thesystemstructurewasbecomingmoreandmorecomplicated,theconnectionbetweeneachsubsystemnodewasincreasinglytightandthedataflowdischargewasalsobecomingincreasinglylargeineac
2、htransmission.Sotheperformanceproblemwasgraduallybecomingthekeyfactorthatrestrictedtherapiddevelopmentofdistributedradarsimulationsystem.Asthecornerstoneofsystemoperation,thetransmissionefficiencyproblemofradarsimulationdatadistributedeachnodewasveryoutstandi
3、ng.Howtoensurethespeedandservicequalityofradarsimulationdatabase,andhowtomakeitkeeprunningsmoothlyandefficiently,theseaspectbelongtocategoryofradarsimulationdatabasesystemperformanceoptimization.Thepropositionofradarsimulationdatabasesystemperformanceoptimiza
4、tioncontributedtothedigitalclosedradarsimulatedsystemwiththeleastcostandthemostimportantappliedvalue.Thedissertationfirstlysummarizeddevelopmentprocessofdatabaseoptimizationinvestigation,andthentechnicallyanalyzedmethodsofexistingdatabaseoptimization.Accordin
5、gasthecharacteristicsofmakeupinradarsimulationdatabasesystem,takingadvantageofexistingoptimizationmethods,weresearchedrelevantoptimizationmethodsfromthreelayersofradarsimulationdatabasesystemarchitecture.Thethreelayersstructurecontaineddataabstractionlayer,le
6、vel2buffermanagementlayerandbottomdatabaselayer.Thisdissertationmainlydiscussedtheredundancyoptimizationofradarsimulationabstractdata,designimplementationofDataStorageManagementOptimizationSystem(DSMOS)andperformanceanalysis,architectureoptimizationofDSMOSbot
7、tomdatabasesystem,tryingtoenhancetheperformanceofradarsimulationdatabasesystemasmuchaspossible,increasedatathroughputtothelimitandcuttheresponsetimeasshortaspossible.Maincontent-listresearchedhereis:1.Itgeneralizedexistingoptimizationmethodsofdatabase.Theseme
8、thodsincluderedundancyoptimizationofrelationaldatabasedonnormalizationtheory,II万方数据ABSTRACTqueryoptimization,indexoptimization,partitionoptimization,memoryoptimizationetc.2.Itresearchedre