基于DSP的全數(shù)字低中頻收發(fā)機的設計與實現(xiàn).pdf

1、北京交通大學碩士學位論文基于DSP的全數(shù)字低中頻收發(fā)機的設計與實現(xiàn)姓名：王振海申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：陶成20071201△墾SⅨ￡至ABSTRACTABSTRACT：Asoftware—definedradio(SDR)systemisaradiocommunicationsystemwhichcallchangethemainparametersofthesystembymeallsofprogrammabl

2、ehardwarewhichiscontrolledbysoftwareItcontainstwocoreideas，oneistoimplementalmostthewholebasebandandIEsystembydigitalmethods，andtheotheristoperformthesignificantamountsofsignalprocessinginareconfigurablehardwareplatformi

3、mplementedbysoftwareMoreoverwitlltherapidprogressoftheperformanceoftheprogrammabledevice，wecandesigntheabovesystemmuchmoreeasilyandefficientlyThusthedestinationofthispaperistodesignandimplementallalldigitalLowIntermediat

4、eFrequencytransceiverofmulti—servicebasedonDSEInthisthesis，first，theTMS320C6713DSParchitectureanditsdevelopmentflowareintroducedLaterchannelsoftransceiveraredesignedwithconsiderationofdataformat，modulationFECandinterweav

5、ingEmphasisisplaced011theoryandimplementationofMSKdigitalmodulationanddemodulationanditsfeedforwardsynchronizationanaudiocompressionalgorithmCVSD(ContinuousVariableSlopeDeltaModulation)andaFECtechniqueConvolutionalCeding

6、DecodingFinallybasedonthesetheoriesandamilitaryfrequencyhoppingbroadcastingstationstandardwediscussthesolutionofourtransceiver碭eprogramframeworkisestablishedandthepracticalalldigitallowintermediatefrequencytransceiverisr