Ortho-rectification of high-resolution SAR image in mountain area by DEM

Because of the side-looking imaging characteristics, the quality of Synthetic Aperture Radar (SAR) image is badly affected by variable terrain. Such terrain can introduce large displacements in the SAR image geometry that inhibits the collocation of SAR-derived quantities with geographically referen...

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Bibliographic Details
Published in2010 18th International Conference on Geoinformatics pp. 1 - 6
Main Authors Zi Wan, Yun Shao, Chou Xie, Fengli Zhang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2010
Subjects
Accuracy
Data models
Doppler effect
Equations
fusion
Head
high-resolution SAR image
Mathematical model
ortho-rectification
Pixel
RD geo-location model
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ISBN1424473012
9781424473014
ISSN2161-024X
DOI10.1109/GEOINFORMATICS.2010.5568117

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Summary:Because of the side-looking imaging characteristics, the quality of Synthetic Aperture Radar (SAR) image is badly affected by variable terrain. Such terrain can introduce large displacements in the SAR image geometry that inhibits the collocation of SAR-derived quantities with geographically referenced information acquired from other sources. So it is necessary to eliminate such inherent geometric distortions by generating a radar ortho-imagery that corresponds to a well defined map projection. In this paper, aiming at the newest high-resolution SAR data-RADARSAT-2 and TerraSAR-X, an effective ortho-rectification method was studied in detail and the result showed this method could achieve high geo-location accuracy.
ISBN:1424473012
9781424473014
ISSN:2161-024X
DOI:10.1109/GEOINFORMATICS.2010.5568117