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2005年itu亚太地区监测业务培训-教材6-1.ppt

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ConsiderationsonmeasurementMr.******@.cn+8610-68318264RadioMonitoringandSpectrumManagementTraining(China,23-31,May,2005)1ConsiderationsonmeasurementMeasurementtasksandessentialequipmentTime,frequencyandphasedomainFFTanalysisMeasurementuncertainty2MeasurementtasksandessentialequipmentMeasurementtasksandessentialequipmentTime,frequencyandphasedomainFFTanalysisMeasurementuncertainty3●Measurementtasksofmonitoringstation-frequencymeasurements-fieldstrengthandpower-fluxdensitymeasurements-bandwidthmeasurements-modulationmeasurements-upancymeasurements-directionfindingMeasurementtasksandessentialequipment4●Functionsofequipment-omnidirectionalantennas-directionalantennas-receivers-directionfinders-frequencymeasuringequipment-field-strengthmeters-bandwidthmeasurementequipmentMeasurementtasksandessentialequipment5●Functionsofequipment(2)-upancymeasurementequipment-frequencyspectrumregistrationequipment-spectrumanalysers-vectorsignalanalysersormodulationanalysers-decoders-signalgenerators-recordingequipmentMeasurementtasksandessentialequipment6●Frequencyrangeofequipment -9kHz-3GHz -9 kHz-30 MHzforHFmonitoringstations -20 MHz-3 GHzforVHF/UHFmonitoringstationsMeasurementtasksandessentialequipment7●Furtherfunctionsofmeasurementequipment-fieldstrengthmeasurementsalongaroute;-TVvideosignalsmeasurements-works-monitoringoffixedlinkemissions-measurementofsatellitesignalsMeasurementtasksandessentialequipment8Time,frequencyandphasedomainMeasurementtasksandessentialequipmentTime,frequencyandphasedomainFFTanalysisMeasurementuncertainty9●Analyseofsignalsin:-Timedomain-Frequencydomain-Phasedomain.●ThreewaysisinterchangeableTime,frequencyandphasedomain10

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