A comparison between SAR data compression in Cartesian and polar coordinates
Abstract:A wavelet-based method for the lossy compression of single-look complex synthetic aperture radar (SAR) data is presented, together with a comparison between SAR data compressions in Cartesian and polar coordinates. It shows that the compression of complex SAR data in polar coordinates has smaller amplitude and phase errors than in Cartesian coordinates. The compression in polar coordinates requires bit allocation processing between amplitude and phase. This is achieved by phase scaling before compression, and the method is given for scale factor calculation.
Document Type: Research Article
Affiliations: Laboratory for Signal Processing and Remote Control, Faculty of Electrical Engineering and Computer Science University of Maribor Smetanova 17 2000 Maribor Slovenia
Publication date: 2004-05-01