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1、II雷达无源/有源干扰的电磁环境分析及工程实现万方数据AbstractIIIAbstractInformationcanbeobtainedviavisiblelight,infrareddevices,(ultra)sonicwaveorelectromagneticwaveetc.Butthefirsttwowaysarebothlimitedtotheconditionsofweatherandclimate,and(ultra)sonicwaveisrestrictedbynoiseinthecircumstan
2、ces,thusonlyelectromagneticwavecouldrealizethedetectiontaskinallweather,allday,wideboundandhighaccuracy.Soradarisoneofthemainwaystoobtaininformation,andfurther，thecontrolandutilizationofelectromagneticspectrumhavebecomethenewdestinationstrivedbythebothsidesofthec
3、ombat,whichcausestheheavypollutionoftheelectromagneticspectruminthefutureandthemorecomplexityoftheelectromagneticenvironment.Therefore,theeffectivedetectioninthecomplexelectromagneticenvironmentofradarisanimportantproblemtobesolvedformilitaryandcivilianelectronic
4、equipment.Theechoesfromradarnotonlycontaintheinformationofinterestingtargets,butalsocontainthevariouskindsofjammingwhichdescendstheperformancesofradarundoubtedly.Inordertokeepthegooddetectionperformanceofradarincomplexelectromagneticenvironment,lotsofresearcheson
5、therecognizationforpassive/activejammingofradararegivenbasedontheinformationtechnology.Themaincontentsofthisdissertationis:First,traditionalanti-passivejammingalgorithmsareintroduced.Inaddition,theexistingproblemsaboutthesealgorithmsareanalyzed,andthenthepassivej
6、ammingissuppressedforthemeasureddata.Then,thethesisstudiessomecommontypesofactivedeceptionjamming,andfurther,basedontheDechirpingandshorttimefouriertransform(STFT),anovelrecognitionschemeforintensivedeceptionjammingisproposedtoextractfeaturesfromtheechosignals.Th
7、ecorrectnessandeffectivenessofthealgorithmaredemonstratedbythesimulationexperiments.Finally,forsomeapplication,ahardwareplatformofinformationextractionsystem,whichisusedforthepassiveandactivejammingincertainbattlefield,isestablishedanditsimplementationalgorithman
8、dprocedurearepresented.Keywords:IntensiveDeceptionJammingInformationExtractionPassiveJammingElectromagneticEnvironmentofRadar万方数据IV雷达无源/有源干扰的电磁环境分析及工程实现万方数据目录V
