A squint imaging model for typical sliding spotlight SAR is proposed. Considering the azimuth space-variant characteristic of Doppler parameters, the basic rationale and the implementation of azimuth data filtering are analyzed. The ECS algorithm, which combines the two-step approach and the traditional CS algorithm, is amended within the squint imaging model. In addition, the choice of its pivotal processing parameters is discussed in detail. Finally, the algorithm is validated by computer simulation.
HAN Bing
,
ZHANG Yong-Jun
,
LIU Jia-Yin
,
ZHANG Wen-Yi
. ECS algorithm for squint sliding spotlight SAR imaging[J]. Journal of University of Chinese Academy of Sciences, 2012
, 29(5)
: 674
-680
.
DOI: 10.7523/j.issn.2095-6134.2012.5.014
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