ECS algorithm for squint sliding spotlight SAR imaging

doi:10.7523/j.issn.2095-6134.2012.5.014

›› 2012, Vol. 29 ›› Issue (5): 674-680.DOI: 10.7523/j.issn.2095-6134.2012.5.014

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ECS algorithm for squint sliding spotlight SAR imaging

HAN Bing^1,2, ZHANG Yong-Jun¹, LIU Jia-Yin², ZHANG Wen-Yi²

1. Beijing Institute of Remote Sensing Information, Beijing 100192, China;
2. Key Laboratory of Technology in Geo-spatial Information Processing and Application System, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China

Received:2011-06-07 Revised:2011-08-05 Online:2012-09-15

Abstract

Abstract: 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.

Key words: SAR, sliding spotlight, squint model, ECS algorithm

CLC Number:

TN959.73

HAN Bing, ZHANG Yong-Jun, LIU Jia-Yin, ZHANG Wen-Yi. ECS algorithm for squint sliding spotlight SAR imaging[J]. , 2012, 29(5): 674-680.

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ECS algorithm for squint sliding spotlight SAR imaging

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