TheGlobalPositioningSystem(GPS)hasbeenwidelyusedbecauseofitsworld-widehigh-precisionnavigationperformance.However,thepositioningaccuracyoftendecreasesduetotheerrorsourcesofGPSmeasurement,suchassatelliteclock,ephemeris-relatederrors,ionospheredelay,tropospheredelayandmultipath[1].Alltheseerrorsourcesexceptmultipathcanbepredictedandcorrectedbyexist-ingmodelsanddifferentialsystems,suchasthewell-knownDifferentialGPS.However,themultipatherrorsdependonthereceivers’surroundingenvironmentwhichmakesthemdifferentamongGPSreceivers.Hence,theyareconsideredtobethemajorerrorsourceof
TheGlobalPositioningSystem(GPS)hasbeenwidelyusedbecauseofitsworld-widehigh-precisionnavigationperformance.However,thepositioningaccuracyoftendecreasesduetotheerrorsourcesofGPSmeasurement,suchassatelliteclock,ephemeris-relatederrors,ionospheredelay,tropospheredelayandmultipath[1].Alltheseerrorsourcesexceptmultipathcanbepredictedandcorrectedbyexist-ingmodelsanddifferentialsystems,suchasthewell-knownDifferentialGPS.However,themultipatherrorsdependonthereceivers'surroundingenvironmentwhichmakesthemdifferentamongGPSreceivers.Hence,theyareconsideredtobethemajorerrorsourceof
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