Title :
SAR automatic range-migration correction
Author :
Wang, Junfeng ; Liu, Xingzhao
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiaotong Univ.
Abstract :
A new idea is presented to correct range migration in SAR imaging. In the range-Doppler domain, all the samples at a given Doppler frequency constitute a Doppler slice. Different Doppler slices are found to have similar envelopes. According to this similarity, the Doppler slices are shifted in range to correct range migration. This technique applies even without the prior information about the relative motion between the radar and the target
Keywords :
Doppler effect; geophysical signal processing; geophysical techniques; radar imaging; remote sensing by radar; synthetic aperture radar; Doppler frequency; Doppler slice; SAR imaging; automatic range-migration correction; geophysical techniques; range-Doppler domain; synthetic aperture radar; Azimuth; Doppler radar; Filters; Focusing; Frequency; Radar imaging; Radar polarimetry; Radar scattering; Signal resolution; Synthetic aperture radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-8742-2
DOI :
10.1109/IGARSS.2004.1369985
