水聲定位技術(shù)在海洋工程中的應(yīng)用研究初探.pdf

1、989592分類號(hào)I】DC搬研究生學(xué)位論文水聲定位技術(shù)在海洋工程中的應(yīng)用研究初探硎蚴薹壺擗撤脯名奎堡里越申司撐位緩嗣亟專業(yè)名穆鲞旦≥鎏崖壁遁瀣工猩論煳日期簍墮笙墨旦墊旦學(xué)岍日期墊墮璽旦中國海洋大學(xué)InvestigationandStudyonApplicationsofAcousticPositioningTechniqueintheFieldofOceanEngineeringAbstractAcousticwaveistheonly

2、informationcarrierwhichcanpropagatelongdistancesinseawaterAcousticpositioningtechniqueplaysanimportantroleinoceanenvironmentobservation，bottomsurveying，resourcesprospectingandunderwatercommunicationIthasawideoutlookinoce

3、anengineeringapplicationsItisnecessaryfortheresearchonsoundpropagationintheseatomodeltheacousticfieldwithpropersoundpropagationmodelAndtheaccuratepropagationmodelisthebasisofunderwateracousticpositioningRaymodelisoneofth

4、econventionalsoundpropagationmodels，whichissimple，intuitionisticandsuitableforallkindsofsignalsandcanworkinrange—dependentenvironmentsSotheraymodelisanimportantsoundpropagationmodelofunderwateracousticpositioningsystemsI

5、nthispaper，finitestatemachineisestablishedtomodelthesoundraytracingwhichformulatestheinternalstatesandtransitionsofsoundraypropagationAndanapproximationprocessmethodisadoptedforeigenraysfindingAsetofprogramsforsoundrayca

6、lculatingisproposed，whichcancalculatethetracesandthetraveltimeoftheraysinthe2DsoundfieldandsearchtheeigenraysarrivalatthereceivingpointTheprogramsadoptstratifiedconstant—gradientmethodtoapproximatelydescribethesoundveloc