第５２卷第６期测绘学报Vol．５２,No．６２０２３年６月ActaGeodaeticaetCartographicaSinicaJune,２０２３引文格式:王丹菂,徐青,邢帅,等．机载激光测深近水面渗透误差修正的半经验波形分解方法[J]．测绘学报,２０２３,５２(６):９４４Ｇ９５５．DOI:１０．１１９４７/j．AGCS．２０２３．２０２１０６０３．WANGDandi,XUQing,XINGShuai,etal．SemiＧempiricalwaveformdecompositionmethodforcorrectionofnearwatersurfacepenetrationerrorinairborneLiDARbathymetry[J]．ActaGeodaeticaetCartographicaSinica,２０２３,５２(６):９４４Ｇ９５５．DOI:１０．１１９４７/j．AGCS．２０２３．２０２１０６０３．机载激光测深近水面渗透误差修正的半经验波形分解方法王丹菂,徐青,邢帅,林雨准,张国平信息工程大学地理空间信息学院,河南郑州４５００５２SemiＧempiricalwaveformdecompositionmethodforcorrectionofnearwatersurfacepenetrationerrorinairborneLiDARbathymetryWANGDandi,XUQing,XINGShuai,LINYuzhun,ZHANGGuopingInstituteofGeospatialInformation,InformationEngineeringUniversity,Zhengzhou４５００５２,ChinaAbstract:TheaccuracyofsignaldetectionisakeyfactorthataffectsthefinalmeasurementresultsofairborneLiDARbathymetry．Tosolvetheproblemthatgreenlaserpenetratesthewatercolumninnearwatersurfaceandimprovetheaccuracyofthedetectedwatersurfacesignal,asemiＧempiricalwaveformdecompositionmethodisproposed．AsemiＧempiricalsignalconvolutionmodelthatconformstothefieldwaveformsisconstructedbysimplifyingthelaserradiationtransmissionmodel．Deepwaterwaveformsamplesaremanuallycollectedusingtheflighttrajectoryandimagetoestimatetheinitialvaluesandrangesofthewatercolumnparametersinthemodel．Basedonthetrustregionalgorithm,eachcomponentofthewaveformispreciselyreconstructedwiththeconstraintsofthewaveformpriors,sothepositionofthewatersurfacesignalisobtained,andthenearwatersurfacepenetrationerroriscorrected．Theexperimentalresultsshowthattheproposedmethodcombinestheoryandexperienceinwaveformdecomposition,adaptingtowaveformswithdifferentwaterdepthsandimprovingtheaccuracyofthedetectedwatersurfacesignalwithgoodwaveformfitting．Comparedwiththedeconvolutionalgorit...
