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Coregistration Based on Three Parts of Two Complex Images and Contoured Windows for Synthetic Aperture Radar Interferometry

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5 Author(s)
Qifeng Yu ; Coll. of Aerosp. Eng., Nat. Univ. of Defense Technol., Changsha ; Fu, Sihua ; Mayer, Helmut ; Xiaolin Liu
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The coregistration of complex image pairs is a very important step in synthetic aperture radar interferometry (InSAR) data processing. This letter proposes a novel coregistration method that only needs three arbitrary parts of the two complex images instead of four parts in the existing coregistration methods. This method constitutes an integrated three-part method for InSAR data processing with our contoured-correlation-interferometry method for phase-image generation. Saving one part transmission makes a significant advantage when processing SAR images on satellites. Furthermore, we demonstrate that, by means of using fringe contoured windows instead of squared windows, the accuracy of the coregistration for both the three-part coregistration method and the existing methods can be improved considerably

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Geoscience and Remote Sensing Letters, IEEE  (Volume:4 ,  Issue: 2 )