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《基于gps系統(tǒng)的測(cè)向定位研究》由會(huì)員上傳分享，免費(fèi)在線(xiàn)閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、摘要摘要如今GPS系統(tǒng)已經(jīng)廣泛的應(yīng)用于空中、陸地和海洋的定位與導(dǎo)航。GPS以其全球性、實(shí)時(shí)性、全天候連續(xù)、快速、高精度的導(dǎo)航/定位/授時(shí)功能，為全球用戶(hù)提供服務(wù)。利用GPS載波相位技術(shù)對(duì)載體進(jìn)行定向和測(cè)姿的研究開(kāi)辟了一個(gè)新的GPS應(yīng)用研究領(lǐng)域。本文針對(duì)雙天線(xiàn)GPS接收機(jī)的載體姿態(tài)測(cè)定技術(shù)進(jìn)行了探討，在GPS載波相位測(cè)量載體姿態(tài)的理論基礎(chǔ)上，設(shè)計(jì)了一種低成本、高靈活性的GPS測(cè)姿應(yīng)用系統(tǒng)。本文首先講解了GPS系統(tǒng)的原理，GPS接收機(jī)的各個(gè)功能單元和GPS定位的基本原理。接著介紹了GPS載波相位測(cè)量的基本原理，及其在載體姿態(tài)測(cè)定中的應(yīng)
2、用。重點(diǎn)闡述了應(yīng)用雙天線(xiàn)載波相位測(cè)量解算載體姿態(tài)的差分模型算法和快速求解整周模糊度的新方法。在此基礎(chǔ)上應(yīng)用加拿大NovAtel公司的兩塊OEMV-1板卡和飛利浦公司的ARM7芯片給出了系統(tǒng)軟、硬件實(shí)現(xiàn)方案。用C語(yǔ)言編寫(xiě)了衛(wèi)星載波相位測(cè)量和星歷參數(shù)等原始數(shù)據(jù)的接收、解算程序以及模糊度求解算法后的處理程序。最后通過(guò)姿態(tài)后處理程序?qū)y(cè)得的衛(wèi)星數(shù)據(jù)進(jìn)行解算，得出了實(shí)驗(yàn)結(jié)果。結(jié)果表明該系統(tǒng)能夠滿(mǎn)足二維常規(guī)姿態(tài)測(cè)量的要求并具有較高的解算精度。關(guān)鍵詞GPS；載波相位；姿態(tài)測(cè)定；整周模糊度；OEM；ARMVII摘要VIIAbstractAbstr
3、actCurrently,theGlobalPositioningSystem(GPShereafter)hasbeenwidelyusedintheair,landandmarinepositioningandnavigation.GPSprovidesservicesforcustomersallaroundtheworldasitsfunctionsofnavigation,positioningandtimingwithglobalization,realtimeperformance,allweather,fastspe
4、edandhighprecision.TheresearchofattitudedeterminationexploresanewareainGPSapplicationbyusingGPScarrierphasemeasurement.Aimingatcarrierattitudedeterminationbythetwo-antennaGPSreceiver,thisthesisdiscussestheprincipleanddesignsamethodtomeasurethecarrierattitudebyusingtwo
5、-antenna,withlowercostandhigherperformance.ThisthesisfirstlyexplainsthetheoryofGPSsystemandthepartsofGPSreceiver.Secondlythearticleintroducestheprincipleofdeterminationcarrierattitudeusingcarrierphase,especiallyputsfocusonthedifferentialmodelalgorithmusingtwo-antennac
6、arrierphaseandfastambiguityresolutiontocomputethecarrierattitude.Thirdly,itisputforwardtheimplementationschemeofsystemsoftware/hardwarebyusingtheNovAtelOEMV-1receiverandthePhilipsARM7chipandtheClanguageprogramiscompiledtopickupthesatellitecarrierphasedata,ephemerisdat
7、aandotherdata,whichresolutestheambiguityfordatapostprocessing.Finally,theattitudesolutionprogramisgiventocalculatethedeterminationdata.Theexperimentalresultsdemonstratethatthesystemmeetsthecommonrequiredspecificationsandreachesahighprecisionresolution.KeywordGPS;Carri
8、erPhase;AttitudeDetermination;IntegerAmbiguity;OEM;ARMVIIAbstractVII目錄目錄摘要IABSTRACTIII第1章緒論11.1引言11.2國(guó)內(nèi)外研究的現(xiàn)狀及動(dòng)態(tài)21.3課題的科學(xué)意義和
