弱信號(hào)GPS接收機(jī)結(jié)構(gòu)設(shè)計(jì)及驗(yàn)證.pdf

1、西安電子科技大學(xué)碩士學(xué)位論文弱信號(hào)GPS接收機(jī)結(jié)構(gòu)設(shè)計(jì)及驗(yàn)證姓名：鄭俊卿申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：微電子學(xué)與固體電子學(xué)指導(dǎo)教師：劉紅俠20080101AbstractAbstractGPS，TheGlobalPositioningSystem，whichwasinventedbyAmericatorealizetherealtimethree—dimensionalnavigationfunctionThefunctionofaGPSre

2、ceiveriSreceivingandprocessingthesignalofsatellite，andgetthepositionspeedandtimeoftheusersbysoftwarecomputingUsuallythesignalGPSreceiverreceivedisthedirect—transportingstrongsignal，butwhenthereceiversiscoveredbyaveil，wha

3、titreceivediscalledweaksignalIfthereceivercatchesastrongsignalcausedbythechangeoftheexternalconditionwhenprocessingweaksignal，thenthestrongsignalwillinfluencetheweaksignalprocessingandthismaybringswrongpositioninformatio

4、nTomakesuretheGPSrecovercailworkintheweaksignalcondition，thispaperdesignandrealizeaweaksignalreceiveronthebaseoftraditionalreceiverThepaperfirstintroducesthestructureandcontentoftheGPSsignalandnarratestheprincipleandreal

5、izationmethod，whichiseliminatingtheInfluenceofthestrongsignalCROSS—correlationoftheweaksignalsignalautocorrelationNextanalyzeshowtheerrorproducedandthemethodofeliminationundertheweaksignalconditionThendescribedthetraditi

6、onalGPSdi班albasebandreceiverscircuitstructureandaddsthecircuitofweaksignaleliminationOiltheexistedcircuit，realizethedesignofweaksignalreceiverstructureFinallygivetheweaksignalGPSrecoverfunctionverificationaswell勰thesimul