利用区域辐射特性优化获取光学遥感数据.pdf

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1、1007—4619(2013)0l一0138—13JournalofRemoteSensing遥感学报OptimizedsatelliteimageacquisitionwithregionalreflectancecharacteristicsRANQiong，CHIYaobin，WUShuang3，WENQiang31．BeijingLandviewMappingInformationTechnologyCo．Ltd．，Beijing100096，China；2．InstituteofRemoteSensingandDigit

2、alEarth，ChineseAcademyofSciences，Beijing100101，China3．Twen~FirstCenturyAerospaceTechnologyCo．Ltd．，Beijing100096，ChinaAbstract：Aparameteroptimizationmethodwithadjustmentofintegrationtimeisproposedwithanalysisoftheimagingprocessandtheafectingfactors．Animagingparameterse

3、ttingmodelisbroughtup．Themodelparametercalculationandselectionarediscussed．Specificpost-processingoftheimagesacquiredwiththeproposedmethodisanalyzed．ExperimentiscarriedoutwithBeijing一1smallsatellitedataforoptimizedimagingandcomparison．Resultsshowthatimagesacquiredwith

4、theoptimizedmethodhavewiderdynamicrangeandhigherradiometricresolution，andwithadvancedinformationentropyandsignalnoiseratio．Keywords：integrationtime，imagingcontrol，imagingparameteroptimization，dynamicrange，radiometricresolutionCLCnumber：TP701Documentcode：ACitationforma

5、t：RanQ，ChiYB，WuS，WenQ．2013．Optimizedsatelliteimageacquisitionwithregionalreflectancecharacteristics．JournalofRemo~Sensing,17(1)：138-150lINTRODUCTIoNthevarioussceneswithlimitedDNlevels，detailedanalysisandexquisitesettingoftheimagingparametersarenecessary．TheWiththedeve

6、lopmentofmanufacturingtechnology，newsatel—idealinstancewouldbewiththebrightesttargetonthehighestliteshaveimprovingspatialresolution，spectralresolutionandendandthedarkesttargetonthelowestend．However，sincetherevisitfrequency．Thesehigh-performancesatellitesprovidebetters

7、cenesdonotnecessarilyincludealllandtypes，theactualsupportforhigh-precisionearthobservationinamoreefficientdynamicrangeofimagesisalwayswithintheidealdynamicrange，wayofinformationacquisition．However，fortransformationofthewhichprovidespossibilityforimageparameteroptimiza

8、tion．advancedobservationabilitytohighqualityremotesensingimages，Inthispaper,aparameteroptimizationmethodisproposedexquisitei