A REVISED RADIOMETRIC NORMALISATION STANDARD FOR SAR.pdf

A REVISED RADIOMETRIC NORMALISATION STANDARD FOR SAR.pdf

ID:33827715

大小:1.29 MB

页数:4页

时间:2019-02-28

A REVISED RADIOMETRIC NORMALISATION STANDARD FOR SAR.pdf_第1页
A REVISED RADIOMETRIC NORMALISATION STANDARD FOR SAR.pdf_第2页
A REVISED RADIOMETRIC NORMALISATION STANDARD FOR SAR.pdf_第3页
A REVISED RADIOMETRIC NORMALISATION STANDARD FOR SAR.pdf_第4页
资源描述:

《A REVISED RADIOMETRIC NORMALISATION STANDARD FOR SAR.pdf》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库

1、AREVISEDRADIOMETRICNORMALISATIONSTANDARDFORSAR121DavidSmall,NunoMiranda,ErichMeier1:RemoteSensingLaboratories,UniversityofZürich,Winterthurerstrasse190,CH-8057Zürich,SwitzerlandE-mail:david.small@geo.uzh.ch2:EuropeanSpaceAgencyESA-ESRIN,ViaGalileoGalilei,

2、I-00044Frascati,ItalyE-mail:nuno.miranda@esa.intABSTRACTN.B.Althoughthegeometryisterraincorrectedina00ImprovedgeometricaccuracyinSARsensorsimpliesthatmoreGTCproduct,theradiometryoftheorbackscattercomplexmodelsoftheEarthmaybeusednotonlytogeometri-contentsr

3、emainsellipsoid-model-based,asinESAcallyrectifyimagery,butalsotomorerobustlycalibratetheirERS-1/2GECorASARIMG/APGellipsoid-geocodedpro-radiometry.Currentbeta,sigma,andgammanoughtSARradi-ducts.OnlyinRadiometrically-Terrain-Corrected(RTC)ometryconventionsal

4、lassumeasimple“flatasKansas”Earthimagery[6]doesthebackscatternormalisationreplacetheellipsoidmodel.Wecomplementthesesimplemodelswithim-GTC’sellipsoidmodelwithadigitalheightmodel.Imageprovedradiometriccalibrationthataccountsforlocalterrainsimulationalgorit

5、hms,originallydevelopedformissionvariations.IntheeraofERS-1andRADARSAT-1,imagegeolo-planning[2]andgeometryrefinement[9]applications,cancationaccuracywasintheorderofmultiplesamples,andtiepoint-berefinedtoalso“flatten”SARimageradiometry.freeestablishmentoft

6、herelationshipbetweenradarandmapge-ometrieswasnotpossible.NewersensorssuchasASAR,Asimplifiedcross-sectionoftheimaginggeometryofaPALSAR,andTerraSAR-XallsupportaccurategeolocationbasedSARsensorisshowninFigure1.ThesatellitepositionSisonproductannotationsalon

7、e.Weshowthathighgeolocationac-shownforasingletargetpositionEontheEarth’ssurface.curacy,combinedwithavailabilityofhigh-resolutionaccurateThegeocentrecentralanglebetweenSandEis.Afea-elevationmodels,enablesamorerobustradiometriccalibrationturelessellipsoidi

8、sshowninbluerepresentingabroadstandardformodernSARsensorsthatisbasedongammanoughtoutlineoftheEarth’ssurface.Terrainundulationsthataf-normalisedusinganEarthterrain-model.fectthegeometryforeverytargetimagedareshowninI

当前文档最多预览五页,下载文档查看全文

此文档下载收益归作者所有

当前文档最多预览五页,下载文档查看全文
温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,天天文库负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。