Title :
Automatic Range-Migration Correction in SAR Imaging
Author :
Wang, Junfeng ; Liu, Xingzhao
Author_Institution :
Dept of Electron. Eng., Shanghai Jiaotong Univ., Shanghai
Abstract :
A new technique is presented for range-migration correction in SAR imaging. In the range-Doppler domain, the samples at a Doppler frequency constitute a Doppler slice. Different Doppler slices have similar envelopes. Based on this similarity, the Doppler slices are shifted and aligned in range to correct range migration. The technique applies even if the prior knowledge about the relative motion between the radar and the target is unavailable.
Keywords :
Doppler measurement; image processing; synthetic aperture radar; Doppler frequency; Doppler slice; SAR imaging; automatic range-migration correction; frequency-domain expression; range-Doppler domain; synthetic aperture radar; Doppler radar; Energy measurement; Filters; Focusing; Frequency; Polynomials; Radar imaging; Radar polarimetry; Radar scattering; Synthetic aperture radar; SAR; automatic correction; range migration;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4779958
