天線控制器硬件系統(tǒng)的研究與實現(xiàn).pdf

1、大連海事大學碩士學位論文天線控制器硬件系統(tǒng)的研究與實現(xiàn)姓名：錢俊偉申請學位級別：碩士專業(yè)：信息與通信工程指導教師：夏志忠20090601英文摘要AbstractNowadays，along誦t11thedevelopmentofshipping，satellitecommunicationtechnologyisbecomingaveryimportantcommunicatingapproachItwillbeusedmoreandm

2、orefrequentlyforthereal—timecommunicationbetweenmobileships，vehiclesandsatelliteItwouldprovideahugemarketforthesatellitecommunicationequipmentsandtheirpowersuppliesBasedonthe“Antennacontroller’’and“RFandswitchesdesign”pr

3、ojects，ourresearchistorealizethedetectionandoptimizationofantennacontroller，andtoaccomplishtheswitchingcircuitforsatellitecommtmicationequipmentsSincethehardwaredesignofantennacontrollerisalreadyfinished，whatneedtobedone

4、isitsdetectionandoptimizationThemaintaskisthedetectionofpowercircuitCPUanditsperipheralcircuit，enginecontrolandsensorcircuit，amongwhich，theaccelerationsensor’SdatareliabilityiscrucialtothesystemInthiscase，themaintaskisto

5、accomplishthesoftwarecomputingandoptimizationOursecondlytaskisthepowerswitchingcircuitdesignandRFcircuithardwaredesignAccordingtothepowerswitchingstandardandtheworkingenvironmentintheseaweproposedapowerswitchingplanOurpo

6、werswitchingcircuitusesDC／DCtransformationselectdifferentimpulsewidthmodulationbasedonthecurrentcontrolmodeThechipforpowerswitchisUC2843A，andtheperipheralcircuitisalsobasedonitaccordingtotherequirementItisimportantforUSt

7、otaketheworkingenvironmentintoconsiderationwhenitcomestoequipmentschoosingRFcircuitwillprovide305VDC，overlappingtotheRFsignalfortheantennasystem，usingasinglewireforbothpowersupplyandsignaltransmittingAtlast，weputthepower

8、switchandRFcircuitontoallsinglePCBThesignalshieldingeffectbytheshellisconsideredduringthedesignSo，thepowerswitchandRFcircuithardwaredesignareaccomplishedThisprojectprovidesasolutionforthedetectionandoptimizationofantenna