編隊情況下艦載雷達抗同頻干擾方法研究.pdf

1、東南大學碩士學位論文編隊情況下艦載雷達抗同頻干擾方法研究姓名：薛春祥申請學位級別：碩士專業(yè)：軟件工程指導教師：常昌遠馮兵20071008AbstractAbs訂actThemodemnavalwarfarehasbecome血ethree—dimensionalbattlewhichsimultaneouslyhappensintheairseaandsubmarineAireraflsandshipsusedinthewarfareh

2、avebecomeincreasinglymoreandmoleanddifferentkindsofmodemizedequipmentinvoIvedinthewarfieldmakeselectromagneticenvironmentmuchmorecomplicatedandchangeablesoantijammingisveryimportantandtheradarincapableofresistingjammingC

3、allnotsurviveinthemodemwarfareIntheactualworkingprocess，theradarnotonlyneedtoresistreconnaissaneeandjammingfromthefoe，butalsoneedtoo口cratewellintheowncomplicatedelectromagneticenvironment，andespeciallyagreatdealofmoderni

4、zedequipmentfixinginthelimitedspaceontheshipsrequiresmuchbetterEMCdesignEspeciallywhenradarsfotinintonetworkandshipssailinaline，mutualjammingcausedbyhomotyperadarsworkinginthesamefrequenciescanbedisplayedintospiralpetal—

5、likejaunninglines，orjammingringswhoseradiuschangescircularlyfromshorttolongwiththetimeorspokelikejamminglinesOllthescreen，whichCOVerthetargetechosignalsandaffecttheradarworkingperformanceForthemodernradathi曲stabilityoff磚

6、quenciesandrepeatingfrequenciesincreaseprobabilityofcommonfrequencyinterference，andmoreoverhightransmittingpowerandhighreceivingsensitivitymakesanlefrequencyinterferencesuppressionmuchharderSoitisverysignificanttomakeare

7、searchonresistingcomnlonfrequencyinterferencemethodsInthispapel“thesamefrequencyinterferenceproblemisresearchedonunderthesituationofseveralhomotyperadarsworkingtogetherandtheshipsformingintoalineandthecorrespondingresolu

8、tionareproposedFirstlytherepresentingform，characteristicandresearchsituationathomeorabroadofsamefrequencyinterferenceareintroducedandtllellaimingatcharacteristicofthenewtypeshipbornefrequencyscanningsystemradarandtheLFMs

9、ignalpulsecompression，enteringfeaturesofsalnefrequencyinterferenceareanalyzedfromtheviewofpowerandfalsealalTllAtiermanysalnefrequencyinterferenceresistancemethodsareanalyzed。theoptimummethodisproposedforthefrequencyscann

10、ingsystemradartouseinthetaskforcemodenamelycombinationoftimedomainRFradiationmanagementandasynchronousprocessingthrou91lchangingrepetitionperiod：throu曲designingnormalandfoHnationtwoworkingmodestoUSeinthedifiewentwarfares

11、ituationsRFradiationarecarriedouttimedomainmanagement，andrepetitionperiodofthehomotyperadarareseparatedtochangesanlefrequencysynchronousinterferenceintoasynchronousinterferenceBesidesrepetitionperiodstaggeringcaneffectiv

12、elyresistsamefrequencyinterferenceandsimulationanalysisismadeontheprecisionofstaggering，andintheformationmodeduringthemovingtargetprocessingthe‘“blindspeed”resolutionispresentedFinallythedesignisrealizedthroughFPGAandele

13、mentaryexperimentiscarriedoutThispaperisbasedonthedigitalprocessmethodstealizethesamefrequencyinterferenceresistance，andinthiswayradaroriginalprocessingflowcanavoidlargecorrection，sothismethodnotonlycaD_beusedinthefutttl

14、esurveillancedetectionsysternofournayalships，butalsoiseasierfortlleexistingfacilitiestoupgradeandrefittoimproveoverallfightingabilityKeywords：Taskforce；shipbomeradar；frequencyscanningsystem；sanle—frequencyinterference；sa