大气校正仪短波红外通道内部杂散辐射测量方法-豆柴文库

您所在位置：网站首页 / 大气校正仪短波红外通道内部杂散辐射测量方法.docx / 文档详情

在线预览结束，喜欢就下载吧，查找使用更方便

5 金币

下载文档

/ 2

下载提示

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

文本预览

大气校正仪短波红外通道内部杂散辐射测量方法
Title:MeasurementMethodofInternalStrayRadiationsinShortwaveInfraredChannelofAtmosphericCalibrators
Abstract:
Atmosphericcalibratorsareessentialinstrumentsusedforthecalibrationofremotesensingsensorsandsatelliteimagers.Toensureaccurateandreliablemeasurements,itiscrucialtomitigatetheeffectsofinternalstrayradiationintheinstrument.Thispaperaimstopresentameasurementmethodfortheinternalstrayradiationsintheshortwaveinfrared(SWIR)channelofatmosphericcalibrators.Themethodinvolvesthecharacterizationofthestrayradiations,identificationoftheirsources,andimplementationofsuitablecalibrationtechniquestominimizetheirimpactonmeasurementaccuracy.
1.Introduction
Atmosphericcalibratorsplayavitalroleinthecalibrationofremotesensingsensorsandsatelliteimagers.However,internalstrayradiationscansignificantlyaffectthemeasurements,leadingtoinaccurateandunreliabledata.Therefore,itisnecessarytodeveloprobustandcomprehensivemeasurementmethodstoquantifyandmitigatetheeffectsofinternalstrayradiations,particularlyintheSWIRchannel.
2.CharacterizationofInternalStrayRadiations
Thefirststepinmeasuringinternalstrayradiationsischaracterizingtheirspectralandspatialdistribution.Thiscanbeachievedbyusingacalibratedradiometerwithhighsensitivityandprecisespectralresolution.TheradiometerisusedtocollectdataonthestrayradiationsemittedwithintheSWIRchannelacrossvariousspectralbands.Theobtaineddatacanhelpidentifythesourcesandintensityofthestrayradiations.
3.SourceIdentificationandElimination
Oncethecharacterizationiscomplete,thenextstepistoidentifythesourcesofstrayradiations.Athoroughanalysisoftheinstrument'sinternalcomponents,suchasoptics,filters,anddetectors,isnecessarytoidentifypotentialsourcesofstrayradiations.Thisinvolvescarefulinspectionandtestingofeachcomponenttoassesstheircontributiontothestrayradiations.
4.CalibrationTechniques
Toeliminateorminimizetheimpactofinternalstrayradiations,calibrationtechniquesareemployed.Thesetechniquesinvolvetheimplementationofsuitablecorrectionstothemeasureddat