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

Author

Yu, Qifeng ; Fu, Sihua ; Mayer, Helmut ; Liu, Xiaolin ; Yang, Xia

Author_Institution

Coll. of Aerosp. Eng., Nat. Univ. of Defense Technol., Changsha

Volume

4

Issue

2

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

288

Lastpage

292

Abstract

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

Keywords

geophysical signal processing; geophysical techniques; image registration; radar imaging; radiowave interferometry; remote sensing by radar; synthetic aperture radar; InSAR data processing; contoured window; contoured-correlation-interferometry method; image coregistration; phase-image generation; synthetic aperture radar interferometry; Aerospace engineering; Antenna measurements; Data processing; Image generation; Radar interferometry; Radiofrequency interference; Satellites; Surface topography; Synthetic aperture radar interferometry; Time measurement; Coherence; contoured window; coregistration; correlation; synthetic aperture radar interferometry (InSAR);

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2007.894146

Filename

4156179