基于stel2000a的扩频信息系统的设计与实现硕士学位

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1、theSPreadSPectrumCommunicationSystemBasedonSTEL一20O0AAbstractWihthteswitfdeveloPmeniofmobileeommunieation，theITUadvaneesthesnatd耐orIMTZ000as止etagretorthe3rdgeneartionmobileeommunieationsystem.A刀dhtemostinfiueneingnadaPPlieativeeommunieationalteehnologiesbasedonCDMAaerWCDMA，edm2a000，nadTD一SCDMA.An

2、dthentheteehnologyofCDMAbasedonsPeradsPeetru们以hteoryPlaysaveryimPortnatorleinhtemobileeorn们。unieationalteehnolog，ywhiehindieatestheuseofofsPeradsPeeturmeomrnunleationteehniqueinhteeornmecrialfieldhasdeveloPedinioanewstage.Underhtisbackgorund，alotofafmousLSI(LargeSealeInetgrationofCicruits)mnauafc

3、tuerrinhetworldhasdeveloPedhteirownsPerdasPeeturmehiPPorduetswhiehhavealotof丘mctions.TheirpaPearnaeesProvidehtepaPlieationofthesPerdasPeeturmeo们n们nunieationsystemamoreeonvenieniPlatofrm.Basedonstudyingnadreadingalotoferlativeliteratuers，thisPaPerdesignsnadrealiezsadireetsequeneesPredasPeeUrtmeomm

4、unicationbasebnadsystemdePendonStnaofrdTeleeomeoproration，5newsPreadsPecturmehiPSTEL一200OAnadInieleoproartion，5AT89CS1.ThisPorjeetnaalysesnadexPatiatestheinterioreo心ugartionnadworkingPrineiPleofSTEL一2000A，nademPhasiezsontheimPortnatbloeksnadPivotaltechniquesinhteehiP.ThenitdesignshtesehemeofthesP

5、redasPecturmsystem，ineludinghteholistierfmaeofhtesystemnadtheehoieesofeureialPar别的eters.ThedesignofhtissehemedaoPtsASICehiPtouflfillthemainufnetionsofthesPreadsPecturmeonununieationsystemnadenabeeonortlledbysotfware.Theeicruit15simPlenadflexible.Thisdesignenauflfilhtedemnadsofdieffrentdatartnasmi

6、ssionsPeed.ltaeeomPlisheshtedesignofhardwareeireuit，nadexPatiateshteePabailiytofeveyrehiPsinhtissystemnadthePeriPheryinteracfeeireuitbetweenhteseehiPs.AtfernaalysingnadPerdominatingtheeonirollingtimingoftheehiPnadthewokringPrinciPleofhtesystem，htisPpaerdesignshtesystemsotfwareineludinghtemainProg

7、rarn们nebloek，thertnasmissioneonrtolingbloeknadrhereeeivingeonrtollingbloek.AnditemPhasiezsonhowtosettheinnerregistersofSTEL一2000A.Atlast，debugging15doneonhtehardwarePlatofmr，nadhteeorreetwvaeofmrresultshvae摘要随着移动通信的迅猛发