| REALIZATION OF QUICK-LOOK IMAGING FOR SPACEBORNE SAR BASED ON PARALLEL PROCESSING |
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| 作者姓名： | TangZhi ZhouYinqing LiJingwen |
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| 作者单位： | SchoolofElectricalEng.,BeijingUniv.ofAeronauticsandAstronautics,Beijing100083 |
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| 摘 要： | Large range cell migration is a severe challenge to imaging algorithm for spaceborne SAR. Based on design of Finite Impulse Response (FIR) filter and Range Doppler (RD) algorithm,a realization of quicklook imaging for large range cell migration is proposed. It realized quick-look imaging of 8 times reduced resolution with parallel processing on memory shared 8 CPU SGI server. According to simulation experiment, this quick-look imaging algorithm with parallel processing can image 16384x16384 SAR raw data within 6 seconds. It reaches the requirement of real-time imaging.
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| 关 键 词： | 合成孔径雷达 快速锁定成像 范围元迁移 并行处理 |
| 收稿时间： | 10 October 2003 |
Realization of quick-look imaging for spaceborne SAR based on parallel processing |
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| TangZhi ZhouYinqing LiJingwen.REALIZATION OF QUICK-LOOK IMAGING FOR SPACEBORNE SAR BASED ON PARALLEL PROCESSING[J].Journal of Electronics,2004,21(2):152-158. |
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| Authors: | Tang Zhi Zhou Yinqing Li Jingwen |
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| Affiliation: | School of Electrical Eng., Beijing Univ. of Aeronaut ics and Astronautics, Beijing 100083 |
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| Abstract: | Large range cell migration is a severe challenge to imaging algorithm for spaceborne SAR. Based on design of Finite Impulse Response (FIR) filter and Range Doppler (RD) algorithm, a realization of quick-look imaging for large range cell migration is proposed. It realized quick-look imaging of 8 times reduced resolution with parallel processing on memory shared 8 CPU SGI server. According to simulation experiment, this quick-look imaging algorithm with parallel processing can image 16384x16384 SAR raw data within 6 seconds. It reaches the requirement of real-time imaging. |
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| Keywords: | Space borne SAR Quick-look imaging Range cell migration Parallel processing |
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