基于scpi的cdma基站自动测试系统研究与设计

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1、■I东北大学硕士学位论文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、矶ththetestingadjustmentsubsystemandthespectrumanalyzer．Ca

7、rriesonthedemandanalysistotheautomatictestsystem，andjointinganalysisresulttheoveralldesignofthesystemWascarriedon．nlesoftwareofsystemwasdividedtotheinitializationsubsystem，testsubsystem，thequeryandmaintenancesubsystemandthedatabasesubsystem．Accordingtoth

8、etestingstandardsandthemethod，theunioninitialworkfoundation,anaccuratefrequencyalgorithmwhichtheadaptiveinputsig砌powerandtheautosearchprecisefrequencyofbasestationsendsouthasbedesigned．Eachtestitemtheinputtakethesetwoalgor