Abstract: Toverifythefeasibilityofthegeolocationofspacecamerabythewhiskbroomimaging,thegeometricmodelofspacecamerabywhiskbroomimagingwasbuiltconcerningthechangeoftheimagescale,thewhiskanglemeasurementaccuracy,thewhiskanglestabilityandthewhiskangularvelocity,takingthefactorsofgeolocationaccuracyintheoveralldesignastheparameters.Thegeolocationaccuracyalgorithmbasedontheerrorpropagationtheorywasderived,thesimulationwascarriedoutandtheimprovingmethodwasputforward.Theresultsshowthatthegeolocationaccuracyofthelargewidthimageryissimilarbetweenthesmallerlinearlengthbythewhiskbroomimagingandthelongerlinearlengthbythepushbroomimaging.Improvingthewhiskanglemeasurementaccuracy,thewhiskanglestabilityandthetimesynchronizationaccuracycanimprovetheplanegeolocationaccuracy.Thesimulationmethodofthegeolocationaccuracyofspacecamerabywhiskbroomimagingisapplicabletotheindexassignmentofthelargewidthimageryoftheremotesensingsatellite.

Key words: whiskbroomimaging, planegeolocationaccuracy, heightaccuracy, simulationanalysis, spacecamera