| ShippingsafetyissueshavealwaysbeenabigconcerninChina'sinlandwaterway shipping,andneedtobeaddressedandimproved.Intheexistinginlandwaterway transportationsystem,thetraditionalimagemonitoringsystem isusedtomonitorthe majorityoftheships.Inextremeweatherconditions,however,suchasystem failsto monitortheshipsinacontinuousandeffectivemannerduetoitstechnicallimitations.Inresponsetothisissue,theshore-basedradarsystem canbeusedtoobtainremote sensingdataoftheriversviaradarremotesensing,andrelevantsignalprocessing algorithmscanbedevelopedtobreakthroughsuchtechnicallimitations.Inthispaper,inlandwaterwayvesselshavebeenstudied.Remotesensingdataof UHFradarandrelevantsignalanddataprocessingalgorithmswereemployedto identify,detect,andstudythevesselsintheriversectionscoveredbyremotesensing.Theresearchresultswerethenusedtotrycorrelatingandrestoringvesseltrajectories.Theresearchresultshaveprovidedatheoreticalbasisandtechnicalsupportforriver vesselsintheirradarremotesensingtechnology.Themaininnovationpointsofthispaperareasfollows.1BasedontheriverremotesensingdataacquiredbyUHFshore-basedradarand theDopplerspectrumprincipleofriverechoes,therangeandvelocityinformationofthe targetshipisobtained.Thentwoalgorithmsofarraysignalprocessingareadoptedtoacquiretheship's azimuth.Finally,theship'strackisformedaccordingtotheintegratedship'sposition information.Atthesametime,thetrackdiagramsformedbythetwomethodsare comparedandanalyzed.2 According to theirregulartrajectoryformed,combined withthenavigation characteristicsoftheinland navigationand theexisting theoreticalmethods,the trajectorycorrectionmethodisproposed,andthecomparativesimulationflighttrack effectandrelatederrordataarecomparedandanalyzed. |
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