GPS雙頻接收機捕獲技術研究.pdf

1、浙江大學碩士學位論文GPS雙頻接收機捕獲技術研究姓名：丁仁天申請學位級別：碩士專業(yè)：信息與通信工程指導教師：趙民建20130307浙江大學碩士學位論文AbstractAbstractWiththedeVelopmemofsatellitenaVigationteclulology，especiallyfortheconstantproposingandimproVementofGPSModemizationsignals，DuaI一仔e

2、quencyGPSreceiVershasincreasinglybecomethefocusandhotspotsoftheresearchItcaneliminateionosphericintemrence，improvepositioningaccuracyaJldfightagainstmultipathea’ectseffectiVelyT11isthesiswillfocussomeofthekeyissuesoft11e

3、dual仔equencyacquisitionForthesigllalmodelofdual仔equencyreceiVer，t11isthesisanalyzedthekeytecllllologyoft11edual一6equencyacquisitionForthebittransitionint11eacquisitionprocess，weproposedaBTCmethodtoovercomethebittransitio

4、nproblemForthehardwareresourcecOnsumption，t11isthesisproposeda11optimizediIIlplementationstructureofthecorrelatorThesubjectof“s抓iclechapterincludesthefoUowingaspects：(1)AccordingtothecharacteristicsofGPSdual—frequencysig

5、nalPINcode，weintroduceadual一矗equencyGPSreceiVermodelandanalysistheoutputcharacteristicsofthecorrelatorw11ichisthekeypanofthesignalprocessormodule(2)Accordingtotllecharacteristicsofdouble仔equencysigllal，、Vegivet11eacquisi

6、tionsystemprocessofdual仔equencyGPSreceiverWeintroducetwobndsofL2CacquisitionalgoritluTla11danalyze帆omethodsofe1111aJlcingdetectionsignaltonoiseratiometllodByfomluladerivationa11dsimulation，weproposedVariouskindsofconstra

7、imsinthemethodsdbove(3)Foralongtimecoherentintegrationofbittransitionproblem，weproposeaBTCmethodForthehighconsumptionoft11ehardwaureresourcesinL2Cacquisitionprocessa11dtheBTCmethod，weproposeanoptimizedcorrelatorstmctlJre