| SAR自动聚焦处理器的设计与实现 |
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| 引用本文： | 郝智泉,王贞松.SAR自动聚焦处理器的设计与实现[J].计算机工程,2007,33(10):255-257. |
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| 作者姓名： | 郝智泉 王贞松 |
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| 作者单位： | 1. 中国科学院计算技术研究所,北京100080;中国科学院研究生院,北京100039
2. 中国科学院计算技术研究所,北京100080 |
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| 基金项目： | 国家自然科学基金
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中国科学院技术创新项目 |
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| 摘 要： | 合成孔径雷达(SAR)成像具有数据量巨大、算法比较复杂等特点。如何实时实现SAR成像的相关算法是嵌入式高性能计算领域一个值得研究的问题。针对SAR成像中多普勒调频率估计的经典算法PGA算法，阐述了算法的实时化改进。介绍了基于FPGA的SAR自动聚焦处理器的系统级设计及PGA算法到FPGA逻辑实现的映射过程。
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| 关 键 词： | SAR 嵌入式高性能计算 相位梯度自聚焦 FPGA |
| 文章编号： | 1000-3428（2007）10-0255-03 |
| 修稿时间： | 2006-06-10 |
Design and Implementation of SAR Autofocus Processor |
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| HAO Zhiquan,WANG Zhensong.Design and Implementation of SAR Autofocus Processor[J].Computer Engineering,2007,33(10):255-257. |
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| Authors: | HAO Zhiquan WANG Zhensong |
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| Affiliation: | 1. Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100080; 2. Graduate School, Chinese Academy of Sciences, Beijing 100039 |
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| Abstract: | Synthetic aperture radar(SAR)image has some common features such as huge data volume,relative complex algorithm.Realizing SAR image algorithm is worthy of being studied in the domain of embedded high performance computing(EHPC).Some improvements of PGA algorithm and the classic autofocus algorithm are presented.The architecture of the autofocus processor based on FPGA and the principle of how to map the improved algorithm to FPGA architecture are discussed. |
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| Keywords: | Synthetic aperture radar(SAR) Embedded high performance computing(EHPC) Phase gradient auto-focus FPGA |
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