第５２卷第６期测绘学报Vol．５２,No．６２０２３年６月ActaGeodaeticaetCartographicaSinicaJune,２０２３引文格式:符运日,杨玲,沈云中,等．对流层延迟模型的残差包络建模[J]．测绘学报,２０２３,５２(６):８９５Ｇ９０３．DOI:１０．１１９４７/j．AGCS．２０２３．２０２２０２３１．FUYunri,YANGLing,SHENYunzhong,etal．Residualsoverboundingmodelingofthetroposphericdelaymodels[J]．ActaGeodaeticaetCartographicaSinica,２０２３,５２(６):８９５Ｇ９０３．DOI:１０．１１９４７/j．AGCS．２０２３．２０２２０２３１．对流层延迟模型的残差包络建模符运日,杨玲,沈云中,李博峰同济大学测绘与地理信息学院,上海２０００９２ResidualsoverboundingmodelingofthetroposphericdelaymodelsFUYunri,YANGLing,SHENYunzhong,LIBofengCollegeofSurveyingandGeoＧinformatics,TongjiUniversity,Shanghai２０００９２,ChinaAbstract:Thesatellitesignalsoftheglobalnavigationsatellitesystem(GNSS)willbedelayedwhentravelingthroughthetroposphere,andthesedelayscanbecorrectedbyusingempiricalmodels．Toensuresafeandreliablepositioning,anoverboundingmodeloftroposphericdelayresidualsaftermodelcorrectionshouldbeestablishedtomonitortheintegrityofpositioningservices．Theradiotechnicalcommitteeforaeronautics(RTCA)recommendedthattheoverboundingstandarddeviationofthezenithtroposphericdelayusedinaviationis０．１２m．However,thisconstantvaluedoesnotconsiderthegeographicalandseasonalvariationofthetroposphericdelayresiduals,whichwouldreducethecontinuityandavailabilityofGNSSinsafetyoflife(SoL)applications．Consideringthegeographicalandseasonalvariationsofthetroposphericdelayresiduals,theextremevalueanalysisisusedtoestablishtheoverboundingmodelofthetroposphericdelayresiduals．Firstly,total１８Ｇyearresidualswerestandardizedforeach１０°latitudebandtoextracttheseasonalvariation．Thenthegeneralextremevalue(GEV)distributionwasfittedtotheannualmaximumandminimumvaluesofthestandardizedresiduals,andtheextremevaluesataprobabilityof１０－７werecalculatedwiththefittedparameters．Finally,theextremevalueswereconvertedtotheoverboundingstandarddeviation．Theoverboundingm...
