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Volume 33 Issue 7
Jul.  2011
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Zhang Xi-lin, Yuan Dong-feng. A Parallel Decoding Scheme and Parallel Construction Interleaver Turbo Codes[J]. Journal of Electronics & Information Technology, 2006, 28(6): 1059-1063.
Citation: Han Bing, Zhang Yong-Jun, Hu Dong-Hui, Huang Li-Jia. Research on Mending of Space-borne Sliding Spotlight SAR Imaging Model Error[J]. Journal of Electronics & Information Technology, 2011, 33(7): 1694-1699. doi: 10.3724/SP.J.1146.2010.01259

Research on Mending of Space-borne Sliding Spotlight SAR Imaging Model Error

doi: 10.3724/SP.J.1146.2010.01259
  • Received Date: 2010-11-19
  • Rev Recd Date: 2011-02-14
  • Publish Date: 2011-07-19
  • Sliding spotlight SAR, which is between strip-map SAR and spotlight SAR, is a unique imaging mode. Concerning on the long illuminating time and long accumulating time of high-resolution and wide-coverage-area space-borne sliding spotlight SAR, the precision and the azimuth-time-variant characteristic of the traditional imaging model are analyzed in this paper. Based on the theory of motion compensation for airborne SAR, a method to correct the azimuth-time-variant error, which makes use of range error caused by non-linear movement of space-borne SAR relative to the virtual rotating point, is presented. In addition, a method to compensate the remnant cubic error of the imaging model in Doppler domain is also given here. Finally, a new DCS algorithm with imaging model error mending is introduced, whose validity is verified with computer simulation.
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    8. Kuang Hui,Chen Jie,Yang Wei,Liu Wei. An improved imaging algorithm for spaceborne MAPs sliding spotlight SAR with high-resolution wide-swath capability. Chinese Journal of Aeronautics. 2015(04): 1178-1188 .
    9. 鲁加国,钟雪莲,陈仁元. “一步一停”假设不成立时的星载聚束SAR成像. 雷达科学与技术. 2015(05): 449-456 .
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    11. Mo Yajun,Yan He,Zhao Bingji. NOVEL APPROACH BASED ON DERAMPING TECHNIQUE FOR SQUINTED SLIDING SPOTLIGHT SAR IMAGING. Journal of Electronics(China). 2013(03): 243-253 .

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