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CAPS接收机中抗多径方法的研究的开题报告.docx

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CAPS接收机中抗多径方法的研究的开题报告一、研究背景及意义Withthedevelopmentofwirelesscommunicationtechnology,theradiocommunicationsystemisnowwidelyusedinvariousindustries.TheCarrierPhaseTrackingSyntheticApertureRadar(CAPS)isanovelradarsystemthatusesthephaseoftheradarsignaltosynthesizetheapertureofthereceivingantenna.CAPShastheadvantagesofhighresolution,wideimagingrange,andstronganti-interferenceability,andiswidelyusedinmilitaryreconnaissance,targettracking,andenvironmentalmonitoring.However,theconventionalCAPSreceiverisvulnerabletomultipathinterference,whichreducesthesignal-to-noiseratioanddegradesthesystemperformance.InordertoimprovetheperformanceoftheCAPSreceiver,variousmethodshavebeenproposedtocounteractmultipathinterference,includinginterferencesuppression,signalprocessing,anddiversityreception.Therefore,thepurposeofthisresearchistoinvestigatetheexistingmethodsformitigatingtheeffectofmultipathpropagationontheCAPSreceiver,andtoexplorenewapproachestoimprovetheperformanceoftheCAPSsysteminthepresenceofmultipathinterference.二、研究内容及方法Thisresearchwillfocusonthefollowingaspects:1.MathematicalmodelingofmultipathpropagationintheCAPSsystem.2.AnalysisoftheperformanceoftheCAPSreceiverinthepresenceofmultipathinterference,basedonsimulationstudies.3.Investigationofexistingmethodsformitigatingtheeffectofmultipathinterference,includinginterferencesuppression,signalprocessing,anddiversityreception.4.Proposalofnewmethodstoreducemultipathinterference,basedondigitalsignalprocessingtechniques.Thesemethodsmayincludeadaptivefiltering,blindseparation,time-frequencyanalysisandbeamforming.5.ComparisonoftheperformanceoftheproposedmethodswiththatoftheconventionalCAPSreceiver,basedonsimulationstudies.Theresearchmethodwillmainlyincludetheoreticalanalysis,simulationstudies,andexperimentalverification.ThesimulationstudieswillbeconductedusingtheMATLABsoftwarepackageandtheperformanceevaluationwillbeconductedbasedonthestatisticalanalysisofthesimulationresults.三、预期成果及意义Theexpectedachievementsofthisresearchare:1.Asystematicana