实时频谱分析

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1、PrimerFundamentalsofReal-TimeSpectrumAnalysisFundamentalsofReal-TimeSpectrumAnalysisPrimerTableofContentsChapter1:IntroductionandOverview........3-8DPX™Technology:aRevolutionaryToolforSignalDiscovery............................25TheEvolutionofRFSignals.......................3DigitalPhosphorDispl

2、ay....................26ModernRFMeasurementChallenges...............4TheDPXDisplayEngine.....................27ABriefSurveyofInstrumentArchitectures...........5TheDPXTransformEngine..................30TheSweptSpectrumAnalyzer.................5TimingandTriggers............................30Vector

3、SignalAnalyzers......................7Real-TimeTriggeringandAcquisition...........31Real-TimeSpectrumAnalyzers................7TriggeringinSystemswithDigitalAcquisition.....32Chapter2:HowDoestheReal-TimeSpectrumTriggerModesandFeatures..................33AnalyzerWork?.........................9-37

4、RTSATriggerSources......................33RF/IFSignalConditioning........................9ConstructingaFrequencyMask...............34InputSwitchingandRoutingSection...........10Demodulation................................35RFandMicrowaveSections..................10Amplitude,FrequencyandPhaseModu

5、lation....35FrequencyConversion/IFSection..............11DigitalModulation..........................36DigitalSignalProcessing(DSP)Concepts...........12PowerMeasurementsandStatistics...........37DigitalSignalProcessingPathinReal-TimeChapter3:Real-TimeSpectrumAnalyzerSpectrumAnalyzers.............

6、...........12Measurements...........................38-46IFDigitizer...............................13Real-TimeSpectrumAnalyzerMeasurementTypes....38Corrections..............................13FrequencyDomainMeasurements.............38DigitalDownconverter(DDC).................14DPXSpectrum........

7、....................39IQBasebandSignals.......................14TimeDomainMeasurements.................39Decimation...............................15ModulationDomainMeasurements............42DecimationFiltering...............