Geo-location error correction for synthetic aperture radar image using the ground control point

Geo-location error correction for synthetic aperture radar image using the ground control point

Spaceborne synthetic aperture radar(SAR) can provide a high resolution image in all weather conditions. Spaceborne SAR(Synthetic Aperture Radar) obtains electronic image of earth's surface using electromagnetic waves. SAR image inherently contains geo-location error which is caused by SAR image...

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Hauptverfasser: Rho, Soo H., Jung Kim, Kwag, Young K.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Error correction
Foreshortening
Geo-location
Geometry
Ground Control Point
Layover
Radar cross section
Radar imaging
SAR
Shadow mapping
Shadowing
Spaceborne radar
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Jung Kim
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description Spaceborne synthetic aperture radar(SAR) can provide a high resolution image in all weather conditions. Spaceborne SAR(Synthetic Aperture Radar) obtains electronic image of earth's surface using electromagnetic waves. SAR image inherently contains geo-location error which is caused by SAR image acquisition geometry, imaging mode, characteristics of reflectivity and image formation process. In this paper, a geo- location error correction method is presented to analyze and correct the geometric distortion by terrain height error. Using RADARSAT-1 image, a simulation is performed to evaluate the proposed geo-location algorithm. To analyze the effect of proposed correction method, the corrected SAR images are compared with the reference image by RMSE values.
doi_str_mv 10.1109/IGARSS.2011.6050198
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subjects Error correction
Foreshortening
Geo-location
Geometry
Ground Control Point
Layover
Radar cross section
Radar imaging
SAR
Shadow mapping
Shadowing
Spaceborne radar
title Geo-location error correction for synthetic aperture radar image using the ground control point
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