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1、■I東北大學(xué)碩士學(xué)位論文AbstractResearchandDesignoftheCDMABaseStationAutomaticTestSystemBasedonSCPIAbstractThenumberofwirelesscommunicationequipmentssharpincreasingledtoRF(RadioFrequency,RF)interferencegeneratedcontinually．Themainmeansofreduceradiointerferenceistote
2、sttheequipmenttodetermineitsworkparametersdidnotinterfere、^，imotherequipments．Thepreviousmethodofmanuallytestingledtothelowefficiency,hi曲errorrateandlargerworkloadwhentestingtheequipment．Inthecommunicationfieldofautomatictestsystem(AutomaticTestSystem,AT
3、S)callaccomplishthecomplex，cumbersomeworkandavoiderrorscausedbyhumanfactors．Atthesametimethroughalargeamountofcomputerstatistics，computing，ATSwillbecomethehotspotsinthewirelessequipmenttestingfield。Atpresent，onlyseveraltestinstrumentationmanufacturerssuc
4、hasAgilent，R&S，areprovided、析t11large-scale．comprehensiveATS．ThesesystemscoverthebasicCDMAcommunicationstandardonallaspectsofthetestingprogram．Becauseofdifferencesintheenvironment，therearefewapplicationsinRFATS．Andthedomesticapplicationsremaininthetesting
5、phaseofmanualworkandlowefficiencyhasbeenunabletomeettheneedsoftheteSts．Inthisthesis，combinedwiththeworkingprincipleofspectrumanalyzer,technicalparametersandthetestingstandards，thetestingadjustmentsubsystemWasdesigned．ThetestadjustmentsubsystemCanrealizet
6、headjustmenttoinputtothespectrumanalyzersignalpower,andmaycarryonprocessingtothesignal，hassolvedthetechnicaldifficultywhichcannotsolvebyspectrumanalyzer．AndthecoresystemhardwareframeWasconstructed、磯ththetestingadjustmentsubsystemandthespectrumanalyzer．Ca
7、rriesonthedemandanalysistotheautomatictestsystem，andjointinganalysisresulttheoveralldesignofthesystemWascarriedon．nlesoftwareofsystemwasdividedtotheinitializationsubsystem，testsubsystem，thequeryandmaintenancesubsystemandthedatabasesubsystem．Accordingtoth
8、etestingstandardsandthemethod，theunioninitialworkfoundation,anaccuratefrequencyalgorithmwhichtheadaptiveinputsig砌powerandtheautosearchprecisefrequencyofbasestationsendsouthasbedesigned．Eachtestitemtheinputtakethesetwoalgor
