基于802.11b標(biāo)準(zhǔn)的無線移動終端研制

1、南京航空航天大學(xué)碩士學(xué)位論文基于802.11b標(biāo)準(zhǔn)的無線移動終端研制姓名：葉正鑫申請學(xué)位級別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：徐大專20071201基于802.11b標(biāo)準(zhǔn)的無線移動終端研制iiAbstractWLANusesthewirelessmediumtoreplacethetraditionalcablefinfmationtransfer.WLANhassuchadrantagesaslowcostsimplewkbuild

2、ingstrongmobilitylargedatathroughputcommunicationreliabilitysoon.AsamemberoftheIEEE802.11protocolseriesIEEE802.11busesthe2.4GHzISMcommonfrequencybitshighestdatatransferrateis11MbpsithasbecomeoneofthemainstreamWLANtechnol

3、ogy.BasedontheembeddedsystemWLANtechnologythepapergivesasolutionfwirelessmonitmobilevideomobileAdhocwksoon.ThesystemusestheARMcontrolsystemWLANintegratedchiptoimplementthewirelessmobileterminal.ThesystemusesBGW200astheWL

4、ANintegratedchip.BGW200mainlygesfthewirelesssubsystem’sdataprocessingofPHYDLLincluding802.11bwirelesssignal’stransceiveramplificationfilteringfrequencymixerbasebsignalprocessing.WLANsubsystemsupptsbootstappingloadingmeth

5、odhostloadingmethod.ThesystemusestheARM9chipS3C2410astheCPUofARMcontrolsubsystemwhichbasedonARM920T.TheembeddedLinuxisusedastheoperationsystem.TheARMsubsystemmainlygedfthedataprocessingthetransfmationbetweenIEEE802.11bIE

6、EE802.3protocolsoon.ItalsosuppliessuffientHCIthecommunicationinterfacetoothersubsystem.ThewirelessplatfmtransfersdatathroughSPIinterfacebetweenWLANsubsystemARMsubsystem.Theprimaryendeavofthisthesisincludesseveralpartsasf

7、ollowing.Itpresentsconceptualdesignsolutionofthewirelessmobileterminal.ItaccomplishesthedesignoftheembeddedprocesssubsystemtheWLANsubsystem.Itresolvesthesystem’sEMCproblemofthe2.4GHzISMsignal.Itaccomplishesapplicationsof

8、twaredesign.System’sschematicPCBtheinstallationdebuggingtestofthehardwaresoftwaresystemareaccomplished.Thefinaltestingresultshowsthattheconceptualdesignofthissystemissuccessfulonthewhole.Keywds:WLANEmbeddedsystemEmbedded