摘要
In order to obtain high-resolution images, autofocus are widely used in Synthetic Aperture Radar (SAR) imaging. In this paper, a hybrid SAR autofocus approach is proposed, which estimates the quadratic phase error by using the fractional Fourier transform (FRFT) and the residual phase error by the phase gradient autofocus (PGA). The proposed approach combines the parametric and non-parametric autofocus techniques and its performance is superior to that of the PGA alone. Experimental results of simulated and real data demonstrate the validity of this hybrid approach.
源语言 | 英语 |
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主期刊名 | ICSP 2012 - 2012 11th International Conference on Signal Processing, Proceedings |
页 | 1940-1943 |
页数 | 4 |
DOI | |
出版状态 | 已出版 - 2012 |
活动 | 2012 11th International Conference on Signal Processing, ICSP 2012 - Beijing, 中国 期限: 21 10月 2012 → 25 10月 2012 |
出版系列
姓名 | International Conference on Signal Processing Proceedings, ICSP |
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卷 | 3 |
会议
会议 | 2012 11th International Conference on Signal Processing, ICSP 2012 |
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国家/地区 | 中国 |
市 | Beijing |
时期 | 21/10/12 → 25/10/12 |
指纹
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Bai, X., Wang, D., & Zhao, J. (2012). A hybrid Synthetic Aperture Radar autofocus approach based on FRFT and PGA. 在 ICSP 2012 - 2012 11th International Conference on Signal Processing, Proceedings (页码 1940-1943). 文章 6491959 (International Conference on Signal Processing Proceedings, ICSP; 卷 3). https://doi.org/10.1109/ICoSP.2012.6491959