CCSDS存储器访问业务在航天器综合电子系统中的应用研究-豆柴文库

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CCSDS存储器访问业务在航天器综合电子系统中的应用研究
Abstract
TheCCSDSStorageAccessProtocol(CSAP)isasetofstandardsdesignedbytheConsultativeCommitteeforSpaceDataSystems(CCSDS)thatdefinestheinterfacesandprotocolsforaccessingdatastoredonspacevehicles.CSAPhasbeenwidelyusedinvariousspacecraftsystemsandhasbecomeanimportantprotocolfordatastorageandretrievalinthespaceindustry.ThispaperdiscussesCSAP'sapplicationinspacecraftintegratedelectronicsystems(IES)andanalyzesitsadvantagesandchallenges.
Introduction
SpacecraftIESiscomposedofvarioussubsystems,includingpowersupply,communications,control,dataprocessing,andstorage.Inparticular,datastorageisanessentialcomponentofspacecraftIES,whichisresponsibleforstoringmission-criticaldata,telemetry,andscientificdatacollectedduringthemission.Thestoreddatamustbeaccessed,analyzed,andprocessedtosupportscientificresearch,testing,andmissionoperations.Therefore,reliableandefficientdatastorageandretrievalarecrucialforthesuccessofaspacemission.
TheCCSDSStorageAccessProtocol(CSAP)providesastandardmechanismforaccessingdatastoredonspacevehicles.Itdefinesasetofprotocols,dataformats,andinterfacesforstoring,retrieving,andmanagingdataonspacecraftsystems.CSAPhasbeenwidelyadoptedbythespaceindustry,anditissupportedbymanygroundstationsandmissionplanningtools.ThispaperevaluatestheapplicationofCSAPinspacecraftIES,discussesitsadvantagesandchallenges,andprovidesrecommendationsforfutureimprovements.
ApplicationofCSAPinSpacecraftIES
CSAPprovidesaflexibleandmodulararchitecturethatcanbeadaptedtodifferentspacecraftstoragesystems.Itconsistsofthreelayers:theTransferServiceslayer,theFileServiceslayer,andtheMediaServiceslayer.Eachlayerprovidesasetofservicesthatcanbeusedindependentlyorcombinedtocreateacompletestoragesolution.
TheTransferServiceslayerdefinestheprotocolsfortransmittingdatabetweenthegroundstationandthespacecraft.ItincludestheSpacecraft-to-GroundProtocol(SCSP)andtheProximity-1Protocol.SCSPisusedforlong-rangecommunication,whileProximity-1isusedforshort-rangecommunication.Bothprotocol