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  • 所需E币: 4
    时间: 2020-1-15 10:06
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    上传者: rdg1993
    FFTandSweepspectrumanaAgilentPerformanceSpectrumAnalyzerSeriesSweptandFFTAnalysisApplicationNoteSpectrumanalysismeasurementsofteninvolvetrade-offsbetweenaccuracy,speedanddynamicrange.Inmostcases,emphasisononeoftheseparametersadverselyimpactstheothertwo.Forexample,thewideresolutionbandwidths(RBW)usedtoachievefastmeasurementspeedsresultinhighernoiselevelsandpotentiallyreducedynamicrange.IncreasingthesweeprateimprovesmeasurementspeedsforagivenRBWbutreducesaccuracyduetoinadequatesettlingtimefortheintermediatefrequency(IF)filters.Alternatively,dynamicrangemaybeemphasizedattheexpenseofmeasurementspeedbecauseoftheneedtousenarrow(slowsweeping)RBWfiltersand,insomecases,averaging.TheAgilentTechnologiesper……