| 引用本文: | 李肖冬,梁甸农.一种适用于 UWB-SAR 的实时成像算法.[J].国防科技大学学报,2000,22(5):41-45.[点击复制] |
| LI Xiaodong,LIANG Diannong.A Real-time Imaging Algorithm for UWB-SAR[J].Journal of National University of Defense Technology,2000,22(5):41-45[点击复制] |
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| 一种适用于 UWB-SAR 的实时成像算法 |
| 李肖冬, 梁甸农 |
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(国防科技大学 电子科学与工程学院, 湖南 长沙 410073)
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| 摘要: |
| UWB-SAR 系统较之常规 SAR 系统, 成像所需计算量更为庞大, 实时处理的实现更难。通过将子孔径思想应用于 BP 算法, 给出了一种实用的实时成像算法(Local BP 算法), 该算法同 BP 算法相比, 成 N×N 点的图像, 运算量可减少, 同时该算法具有良好的并行及流水实现结构。 |
| 关键词: UWB-SAR BP 成像算法 实时成像 |
| DOI： |
| 投稿日期：2000-04-30 |
| 基金项目:国家重点预研项目资助 |
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| A Real-time Imaging Algorithm for UWB-SAR |
| LI Xiaodong, LIANG Diannong |
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(College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Compared with usual SAR, the computational load of UWB-SAR system for imaging is larger, and the realization of real-time processing is more difficult. According to applying sub-aperture process to the BP algorithm, a practical real-time imaging algorithm (Local BP algorithm) is presented. For a SAR image area with N pixels each side, LBP algorithm can reduce the required operations, and it has a good parallel and pipelined architecture. |
| Keywords: UWB-SAR Local BP algorithm real-time imaging |
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