GPS导航运算的硬件实现

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1、上海交通大学硕士学位论文GPS导航运算的硬件实现姓名：郭春煊申请学位级别：硕士专业：电路与系统指导教师：毛志刚20080101ABSTRACTTHEHARDWAREIMPLEMENTATIONOFGPSCOMPUTATIONABSTRACTSincetheglobalpositioningsystem(GPS)cameintobeing,ithasdrawnextensiveattentionfromvariousaspects.Itboastsanumberofmeritoriouscharacte

2、ristics,amongwhichisitsglobality,all-weatherrunningandreal-timeorientation.ThesequalitiespromisewidespreadapplicationsofGPSinvariedfieldssuchasinmilitary,mapping,transportationcomputation,environmentalprotectionandatmosphericproberealms.Thispaperinvesti

3、gatesandanalyzesthecurrentstructureofthesignalprocessingunitofGPSreceiveranditsrealizationmodes.Itisdiscoveredthattraditionaryconductingnavigationandpositioningviasoftwareaskprocessorforhigherperformance.OnthebasisoftheresearchintoGPSpositioningcalculat

4、ionprinciples,theauthorimplementsthewholepositioningalgorithm,whichisresponsibleforGPScomputationinthesystem.TheauthordesignsthestructureofGPSDSParcordingtoGPSalgorithmanddoestheintegratedcell-based-design.Moreover,thispaperalsoprovidedelaborateexplanat

5、ionsforthecriticalproblemsasfloatingpointnumberscomputation,matrixinversion,trigonometricfunctionscomputationandsooninthedesign.Furthermore,theauthor’smethodologyhasbeenprovedaccurateandeffectiveinGPSpositioningcomputationthroughexperiment.KEYWORDS:GPS,

6、CORDIC,MatrixInversion,SystolicArrayII图片目录图片目录图1SoC系统结构图···································································································2[18]图2GPS工作卫星星座··················································································

7、·········5图3GPS的广播信号···································································································9图4GPSC/A码的编码结构·····················································································10图5GPS接收机结构的框图···················

8、··································································12图6相关器框架图·····································································································13图7码跟踪环路的框图········································