第32卷第3期测绘工程Vol.32No.32023年5月EngineeringofSurveyingandMappingMay2023DOI:10.19349/j.cnki.issn1006-7949.2023.03.001基于评价标签的ATLAS控制点筛选方法张鑫磊1,2,徐青2,邢帅2,张国平2,李鹏程2,高铭2(1.西安测绘研究所,西安710054;2.信息工程大学地理空间信息学院,郑州450001)摘要:ICESatGLAS激光测高数据已成为全球高程控制的重要数据源之一。ICESat-2所搭载的激光器先进地形激光高度计系统ATLAS采用光子计数体制,具有极高的灵敏性,能够进一步提高立体测绘的应用能力。由于激光高度计的模式不同,GLAS控制点筛选方法不能直接应用于ICESat-2数据。针对ATLAS数据特点,文中提出一种基于评价标签的ATLAS控制点筛选方法。该方法首先关联ATL03、ATL08内部参数,然后利用ATL03评价标签进行粗筛选,最后利用ATL08评价标签进行精细筛选。选取河南郑州地区12对第五版ATL03、ATL08数据对所提算法进行精度验证,经筛选后控制点的RMSE可提升54.46%。关键词:ATLAS;星载激光测高;ICESat-2;全球控制点中图分类号:P228文献标识码:A文章编号:1006-7949(2023)03-0001-07ATLAScontrolpointextractionmethodbasedonevaluationlabelZHANGXinlei1,2,XUQing2,XINGShuai2,ZHANGGuoping2,LIPengcheng2,GAOMing2(1.Xi’anResearchInstituteofSurvegingandMapping,Xi’an710054,China;2.TheInstituteofGeospatialInformation,StrategicSupportForceInformationEngineeringUniversity,Zhengzhou450001,China)Abstract:ICESatGLASlaserallocatordatahasbecomeoneoftheimportantdatasourcesforaltitudecontrolintheworld.TheATLAScarriedbyICESat-2adoptsaphotoncountingsystem,whichhasextremelyhighsensitivityandcanfurtherimprovetheapplicationabilityofstereomapping.Duetothedifferentmodesofthelaseraltimeter,GLAScontrolpointextractionmethodcannotbedirectlyappliedtoICESat-2data.Aimingattheaboveproblems,inthispaper,weproposeacontrolpointextractionmethodbasedonevaluationlabels.ThemethodfirstcorrelatestheinternalparametersofATL03andATL08,thenusestheATL03evaluationlabelforroughscreening,andfinallyusestheATL08evaluationlabelforfinescreening.Theaccuracyoftheproposedalgorithmisverifiedbyselecting12pairsfiftheditionATL03andATL08datainZhengzhou,HenanProvince.Afterextraction,theRMSEofthecontrolpointscanbeincreasedby54.46%....
