软件GPS接收机与波束形成课件.ppt

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1、IntegratingDigitalBeamForming&SoftwareGPSReceiverforUAVNavigationJadeMortonPresentationOutlineProjectMotivationSoftwareGPSReceiverDigitalBeamFormingExperimentalSetupCurrentResearchResultsSamplesFutureWorksAcknowledgementMotivationJammersSatelliteSignal1.Mostbeamformingtechni

2、quesaredevelopedusingsimulations2.Inflexiblehardware-basedsystemforperformanceevaluation3.Needforintegratedaperture/hardware/softwarereceiversystemSatelliteSignalUAVAcquisitionSoftwareGPSReceiverGeneralResearchFrameworkControlledExperimentSimulationGPS+JammingGenerationDigit

3、alBeamFormingProcessorAntennaGainPatternAnalysisAcquisitionResultsAnalysisTrackingResultsAnalysisPositionResultsAnalysisPerformanceEvaluationMulti-antennaApertureMulti-channelRFFrontEndTrackingPositionCalculationAnExampleGPSOrbitSkyPlot3:00-7:00PM,attheSundialonMiamicampusGP

4、SL1CSignalStructureSoftwareReceiverBlockDiagramGPSReceiverSoftwareSignalProcessingGPSSignalAcquisitionXReferenceInputFindamatchSatelliteBeamFormingConceptPhasedelayd12122d12ExperimentalSetupGPSSignalxd4321gm1zyInterferencesourceSpaceOnlyBeamFormerSpace-TimeBeamFormerAnExa

5、mpleDigitalBeamFormingProcessor:NoiseInterferenceGPSsignalssubjecttoa:AntennaarraysteeringmatrixArray-signalsourcesteeringmatrixExampleProcessingResultsUsingExperimentalDataJammertoSignalPowerRatio=40dBStatisticalSummary:MOPMethodTotal66experiments3typesjammers:BPSK,FMchirp,

6、BroadbandFutureWorksReconfigurableantennaarray:OSUSimulationExperimentNon-constrainedbeamformprocessorsTrackingperformanceReceiverpositionaccuracyMorejammertypesAcknowledgementFundingsupportfromAFOSR/AFRLExperimentalsupportfromWPAFB,SensorDirectoratePersonnelsupport:AFRL:Dr.

7、JamesTsui,Mr.DavidLin,Dr.LeeLiou,Dr.StephenHary,Dr.MikelMiller,Mr.KevinSickle,Mr.BoydHolsappleAFOSR:Dr.JonSjogrenMiami:Dr.QihouZhouOARS:Dr.GilPaceyThankYouExperimentalConstellationBackupSlidesSimulation---MOPMethod3BeamConstraints4-elementantenna9-elementantennaSimulation--

8、-SCOREMethod3SatellitesAvailable4-elementantenna.9-elementantenna.Broadban