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GNSS智能相干跟踪欺骗干扰方法及效能分析研究.docx

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GNSS智能相干跟踪欺骗干扰方法及效能分析研究 Title:GNSSIntelligentCoherentTrackingSpoofingInterferenceMethodsandPerformanceAnalysisResearch Abstract: GlobalNavigationSatelliteSystem(GNSS)playsacrucialroleinawiderangeofapplications,includingnavigation,positioning,andtiming.However,thevulnerabilityofGNSStospoofingattacksposesasignificantsecuritythreat.Thispaperfocusesonresearchingvariousintelligentcoherenttrackingspoofinginterferencemethodsandanalyzingtheireffectiveness. Introduction: WiththeincreasingrelianceonGNSS,spoofingattackshaveemergedasaseriousconcern.Traditionalanti-spoofingtechniquesoftenrelyonsignalauthenticationandencryption.However,sophisticatedspoofingtechniqueshaveevolved,requiringacomprehensiveandintelligentapproachtocounteractthethreats.Theutilizationofintelligentcoherenttrackingspoofinginterferencemethodscanprovideapotentialsolution. Methods: 1.TimeDelaySpoofing: -Description:ThismethodinvolvesthecreationofartificialtimedelaysintheincomingGNSSsignalstodeceivethereceiver. -EffectivenessAnalysis:Theeffectivenessofthismethodcanbedeterminedbyevaluatingtheabilitytocreateconvincingartificialtimedelaypatternsthatcandeceivethereceiverwithoutbeingeasilydetected. 2.SignalReplaySpoofing: -Description:ThismethodinvolvescapturingauthenticGNSSsignalsandreplayingthemtodeceivethereceiver. -EffectivenessAnalysis:Thismethod'seffectivenesscanbeanalyzedbyassessingtheabilitytomimictheauthenticsignalsaccurately,consideringfactorssuchaspowerlevels,multipatheffects,andpositioningaccuracy. 3.Ionosphere-BasedSpoofing: -Description:ThismethodinvolvesmanipulatingtheionospheretodistorttheGNSSsignalsreceivedbythereceiver. -EffectivenessAnalysis:Theeffectivenesscanbeanalyzedbystudyingthedegreeofsignaldistortioncausedbyionospheremanipulationandtheimpactonreceivertrackingperformance. 4.ReceiverJammingSpoofing: -Description:ThismethodinvolvestransmittingstronginterferingsignalstojamtheGNSSreceiver'strackingcapabilities. -EffectivenessAnalysis:Thismethod'seffectivenesscanbeassessedbyevaluatingitsabilityto