影响单波束测深仪测量精度的因素及消除措施

4321201211YangtzeRiverVol．43No．21Nov．20122012－07－16。[e-mail]1001－4179201221－0042－03121．4343002．448156。、、、、、、。。P21A。、。。、3。SDH－13ASDH－13D。、、、。、SDH－13D。11．1。、1/3～2/5。0．5～1．0m、0．5m。10m。、。“”。GPS、。21。1．2、、、。、、。“”K“X1”K“X2”。K“X2”0．5m1m。。“”。。“”。。、、。。DE－719C“”12m、。2m3～5m“”。、、2m5m“”。1．3、、、。。。“”、。。。1．41．4．1、、、、。1。。2。。3。、。1．4．2、、、、、。1。。。3420122。。。1．5。10．8～11．0V“”。。5m、。。1．6、、、、、、、。、、、。22．1、。。2．2。。。3、、。、、、。InfluentialfactorstomeasurementaccuracyofsinglebeamdepthsounderandcountermeasuresYANGMengyun121．Gong'anBranchSurveyandDesignInstituteofJingzhouYangtzeRiverManagementBureauGong'an434300China2．RuihongProjectManagementCo．LtdinHubeiJingmen448156ChinaAbstractInordertoincreaseaccuracyofthesinglebeamdepthsounderintheinlandunderwatertopographicsurveythefac-torsthatinfluenceitsmeasurementaccuracyareanalyzedwiththecaseofbankprotectionworksofthemaindykeontheYangtzeRiverandoff－shoreunderwatertopographicsurveyinJingjiangRiverflooddivisionarea．Theresultsshowthatthefactorssuchasinstallationofsoundsystemthedebuggingpriortosurveytheoperationalapproachtheoperationsaccordingtotheechotothetextureandtopographyoftheriverbedtheinterpretationstothedifficultiesandmissingpointsinindoorworkandthede-creaseofvoltageandthereplacementofcomponentsoftheinstrumentinfluencethemeasurementaccuracy．Inviewoftheseis-suesthesolutionsandmeasuresaregiven．Keywordssinglebeamdepthsoundermeasurementaccuracyunderwatertopographyinlandriversandlakes44