Proceedings of the KSRS Conference (대한원격탐사학회:학술대회논문집)
- 2008.10a
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- Pages.251-254
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- 2008
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- 1226-9743(pISSN)
GEOMETRIC COREGISTRATION FOR TERRASAR-X INTERFEROMETRY
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Yoon, Geun-Won
(Agency for Defense Development)
;
- Kim, Sang-Wan (Department of Geoinformation Engineering, Sejong University) ;
- Lee, Yong-Woong (Agency for Defense Development) ;
- Won, loong-Sun (Department of Earth System Sciences, Yonsei University)
- Published : 2008.10.29
Abstract
The German radar satellite TerraSAR was launched in 2007. In this study, interferogram is generated using TerraSAR-X data and DEM (Digital Elevation Model). Coregistration procedures used with SAR images (i.e. master and slave) in traditional method results in serious errors for high resolution TerraSARX data because of the mutual shift of the master and slave images due to topography. This error becomes more serious in mountainous areas in which the coherence between interferometric pairs is relatively low. Here we processed a geometric coregistration with DEM exploiting height information. Through the method, interferometry processing is fulfilled to generate a qualified interferogram and coherence is improved. This approach will help high resolution X-band SAR interferometry in mountainous area.