关键词: 平台运动, 光学成像, 高分辨率, 仿真模型, 图像质量

Abstract: Duringtheimagingprogressofspacebasedhigh-resolutioncamera,theimagequalitywillbeaffectedbyinstabilityofsatelliteplatform.Aimedtothisproblem,mechanismofimagequalitydegradationduetoimagemotionwasfirstlyanalyzedandthendifferentsimulationmodelsforstaring,linearscanningandtimedelayandintegrationimagingmodeswerebroughtuptosimulateimagescausedbyimagemotion.Thehigh-resolutionremotesensorwasthentakenasthesimulationexampletoanalyzeimagequalityunderdifferentconditions.TheresultsshowthatmoreimagedegradationisbroughtbyvibrationforTDIimagingmodeandimagequalityismoresensitivetoplatformvibrationwithhigherresolution.Atlast，therelationbetweenspatialresolutionandplatformvibrationparameterswasbuiltandtolerancesofvibrationamplitudeweregivenaccordingtodegradationmodelandimagequalityevaluation，whichcanprovidereferencesforparametersofstabilizationdevices．

Key words: platformvibration, opticalimaging, highresolution, simulationmodel, imagequality