基于PCI總線的高級在軌系統(tǒng)幀同步信號發(fā)送器的設計.pdf

1、內(nèi)蒙古工業(yè)大學碩士學位論文基于PCI總線的高級在軌系統(tǒng)幀同步信號發(fā)送器的設計姓名：蘇鵬沖申請學位級別：碩士專業(yè)：計算機應用技術指導教師：李維忠20060601IIAbstractThispaperparticularlydescribesthedesignimplementationofAOSSynchronousTransmitterbasedonthePCIBus.Thebackgroundofthesubjectisthatthe

2、CCSDS(ConsultativeCommitteefSpaceDataSystems)hasdesignedAOS(AdvancedbitingSystem)fmannedspaceflight.ByusingAOSwhichcantransmitdatabidirectionallysymmetrilybetweenthespacesystemthegroundsystemtoservefcustomers.Nowadayseac

3、hspaceflightcourtryisgraduallyadoptingtheAOSdatastard.TherefetheresearchoftheAOSkeyequipmentsSynchronousTransmitterisverysignificant.SynchronousTransmitterwksontheAOSphysicslayerwhichistakingVCA(VirtualChannelAccessingla

4、yer)sVCPDU(VirtualChannelProtocolDataUnit)withtheCCSDSprovisionof4bytessynchronouscode1ACFFC1Dthensendthedataoutserially.BecausethesatellitewirelesschanneladopttheQPSKasthemodulateddemodulatedwaytheexptofSynchronousTrans

5、mittershouLD#bethreelinesplug(includedatasynchronouspulsethesignalground)whichleadtodemodulationequipment.SynchronousTransmittertriestomakeitsvelocitycapabilityto300Mbps.AmongalloftherecentmainboardbusonlyPCIbuscansupptt

6、hekeepingofa300MbpsthruputsoSynchronousTransmittersresearchisbasedonPCIbus.BecausePCIbusprotocoliscomplicatedweusedofthePCItargetinterfacechipAMCCS5920tocarryoutthecontrolofthePCIbus.Atthesametimefthesakeofthemaintenance

7、ofthedurativeevenspeedcodeflowweshouLD#applytheFIFO(First_InFirst_Outmemy).ThesubjectachievestheconnectionofS5920FIFOassuesthehighspeedtransptofthesignal.ThroughefftSynchronousTransmitterhasachievedprincipiumlybasicprinc